Let your students measure the amount of carbon dioxide they produce through cellular respiration dependent on their bodies' energy. |
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The cycle of carbon movement between the biosphere, atmosphere, hydrosphere, and geosphere is a complex and important global cycle. |
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A heterotroph is an organism that cannot fix carbon from inorganic sources but uses organic carbon for growth. |
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The cycling of materials such as carbon, water, and other nutrients is mainly dependent upon soil-dwelling decomposer organisms such as bacteria fungi. |
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Apples are commonly stored in chambers with higher concentrations of carbon dioxide and high air filtration. |
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The coal, oxygen of the air affinitatively flies to the particles of pure carbon left behind. |
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Radiocarbon dating is used for geologically young materials containing organic carbon. |
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The bodies of salmon represent a transfer of nutrients from the ocean, rich in nitrogen, sulfur, carbon and phosphorus, to the forest ecosystem. |
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Deforestation impacts the carbon cycle, as well as the global and regional climate, and causes the habitat loss of many species. |
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Forests that are sinks for the carbon cycle are lost through deforestation. |
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Though less methane than carbon dioxide is produced, its ability to warm the atmosphere is 25 times greater. |
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With respect to indoor air quality, workers can be exposed to fine particulate matter, carbon monoxide and certain heavy metals. |
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These communities have been little studied, but may be an important part of the global carbon cycle. |
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The smallest tubes, tracheoles, penetrate cells and serve as sites of diffusion for water, oxygen, and carbon dioxide. |
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Sea urchins convert aqueous carbon dioxide using a catalytic process involving nickel into the calcium carbonate portion of the test. |
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This process, called the biological pump, is one reason that oceans constitute the largest carbon sink on Earth. |
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A culture must be aerated or agitated in some way to keep plankton suspended, as well as to provide dissolved carbon dioxide for photosynthesis. |
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Their moulted exoskeletons, faecal pellets, and respiration at depth all bring carbon to the deep sea. |
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Ocean acidification, however, caused largely by higher levels of carbon dioxide emitted into the atmosphere, is cited as a potential threat. |
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Release of methane and carbon dioxide stored in permafrost could cause abrupt and severe global warming, as they are potent greenhouse gases. |
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When the phytoplankton dies, it sinks to the deep ocean and takes the atmospheric carbon with it. |
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The company signed an agreement which prevents them from developing plantations in areas where large amounts of carbon are locked up. |
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In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon, and thus are group 14 hydrides. |
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Hydrocarbons can also be burned with elemental fluorine, resulting in carbon tetrafluoride and hydrogen fluoride products. |
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If hydrocarbons undergo combustion in tight areas, toxic carbon monoxide can form. |
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Water vapor is typically the most abundant volcanic gas, followed by carbon dioxide and sulfur dioxide. |
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Compared to other hydrocarbon fuels, methane produces less carbon dioxide for each unit of heat released. |
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In the chemical industry, methane is converted to synthesis gas, a mixture of carbon monoxide and hydrogen, by steam reforming. |
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A more synthetic method to produce methane is hydrogenating carbon dioxide through the Sabatier process. |
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It has a net lifetime of about 10 years, and is primarily removed by conversion to carbon dioxide and water. |
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The warming may have been due to intense volcanic activity which produced large quantities of carbon dioxide. |
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In 2013 it was criticised for lobbying against carbon pricing in Australia. |
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Typical resins used for these composites include polyester and epoxy, while glass and carbon fibers have been used for the reinforcing material. |
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As the price of glass fibers is only about one tenth the price of carbon fiber, glass fiber is still dominant. |
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A switch to carbon fiber in the structural spar of the blade yields weight savings of 20 to 30 percent, or approximately 15 metric tons. |
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The compressive properties of carbon fiber do not differ significantly from those of glass fiber. |
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It is therefore economical to replace glass fiber components under compression with carbon fiber components. |
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Utilizing carbon fiber enables for simpler designs that use less raw material. |
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Currently, the gas field is explored as a potential place for the purpose of carbon dioxide capture and storage. |
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The second effect of global climate change is global warming due to increased carbon dioxide levels in the atmosphere. |
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France is the smallest emitter of carbon dioxide among the G8, due to its heavy investment in nuclear power. |
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Fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas. |
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The most important part of primary energy sources are the carbon based fossil energy sources. |
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One of the more promising energy alternatives is the use of inedible feed stocks and biomass for carbon dioxide capture as well as biofuel. |
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However, carbon dioxide gas, which when dissolved is partially converted into carbonates and bicarbonates, is often included. |
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Each filament contains a capillary network that provides a large surface area for exchanging oxygen and carbon dioxide. |
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It has been suggested that accumulating reactive nitrogen in the environment may prove as serious as putting carbon dioxide in the atmosphere. |
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Like landfill gas, biogas is mostly methane and carbon dioxide, with small amounts of nitrogen, oxygen and hydrogen. |
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Natural gas burns more cleanly than other hydrocarbon fuels, such as oil and coal, and produces less carbon dioxide per unit of energy released. |
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For transportation, burning natural gas produces about 30 percent less carbon dioxide than burning petroleum. |
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For an equivalent amount of heat, burning natural gas produces about 45 percent less carbon dioxide than burning coal for power. |
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However, in absolute terms, it comprises a substantial percentage of human carbon emissions, and this contribution is projected to grow. |
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Natural gas heating systems may cause carbon monoxide poisoning if unvented or poorly vented. |
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The fossil, in the end, consists of a thin layer of pure carbon or its mineralized form, graphite. |
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Impacts also include reducing soil moisture and a reduction in reabsorption of carbon dioxide emissions. |
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The subcutaneous vessels in the membrane very close to the surface allow for the diffusion of oxygen and carbon dioxide. |
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Controlled atmosphere facilities use high humidity, low oxygen, and controlled carbon dioxide levels to maintain fruit freshness. |
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Certain conditions can cause carbon to crystallize into diamonds. |
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The fungi are traditionally considered heterotrophs, organisms that rely solely on carbon fixed by other organisms for metabolism. |
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Water vapor, carbon dioxide, methane, nitrous oxide, and ozone are the primary greenhouse gases in the atmosphere. |
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There is a scientific consensus linking human activities to global warming due to industrial carbon dioxide emissions. |
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There is evidence from one study that Antarctica is warming as a result of human carbon dioxide emissions, but this remains ambiguous. |
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This had several negative repercussions on the environment, including metal loading and excess atmospheric carbon. |
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Excess carbon dioxide in the atmosphere is believed to be the main cause of the shrinking of lysocline areas. |
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Photosynthesis in turn requires energy from sunlight to drive the chemical reactions that produce organic carbon. |
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Richer biodiversity is associated with areas of known phytodetritus input and higher organic carbon flux. |
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Furthermore, many examples are known for higher numbers of carbon as well as related compounds containing bromine. |
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Other information, especially as to the ratios of gases such as carbon dioxide in the atmosphere, is provided by analysis of ice cores. |
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Two uncalibrated radiocarbon dates on carbon from the hearths came in at approximately 24,000 and 22,000 years ago. |
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The depopulation is linked to a drop in carbon dioxide levels observed at Law Dome, Antarctica. |
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As for other complete combustion processes, nearly all of the carbon content in the waste is emitted as CO2 to the atmosphere. |
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Heavy metals are often adsorbed on injected active carbon powder, which is collected by particle filtration. |
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The oceans are normally a natural carbon sink, absorbing carbon dioxide from the atmosphere. |
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Because the levels of atmospheric carbon dioxide are increasing, the oceans are becoming more acidic. |
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Fossil fuel reserves are abundant, and will not limit carbon emissions in the 21st century. |
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Carbon dioxide has a lifetime of a century or more, and as such, changes in aerosols will only delay climate changes due to carbon dioxide. |
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More research is needed to understand the role of clouds and carbon cycle feedbacks in climate projections. |
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Another prominent research topic is expanding and improving representations of the carbon cycle. |
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A 2015 report by Citibank concluded that transitioning to a low carbon economy would yield positive return on investments. |
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Climate change is raising ocean temperatures and raising levels of carbon dioxide in the atmosphere. |
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The greenhouse gases carbon dioxide, methane and nitrous oxide are produced during the manufacture of nitrogen fertilizer. |
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The figure for the United Kingdom is over 2 kilogrammes of carbon dioxide equivalent for each kilogramme of ammonium nitrate. |
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It has a global warming potential 296 times larger than an equal mass of carbon dioxide and it also contributes to stratospheric ozone depletion. |
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Carbonaceous films are thin coatings which consist predominantly of the chemical element carbon. |
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Australia's carbon dioxide emissions per capita are among the highest in the world, lower than those of only a few other industrialised nations. |
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A carbon tax was introduced in 2012 and helped to reduce Australia's emissions but was scrapped in 2014 under the Liberal Government. |
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The carbon enriches the organic matter in the soil while the biological control microbes provide an alternative to chemical pesticides. |
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This process, called coalification, concentrates the carbon content, and thus the heat content, of the material. |
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Many advanced thermoset polymer matrix systems usually incorporate aramid fibre and carbon fibre in an epoxy resin matrix. |
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Tooling materials include invar, steel, aluminium, reinforced silicone rubber, nickel, and carbon fibre. |
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Productivity on the farm itself and the use of machinery is another source of the carbon emission. |
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These types of machinery all require additional energy which leads to increased carbon dioxide emissions from the basic tractors. |
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The gradual accumulation of decayed plant material in a bog functions as a carbon sink. |
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If the peat decayed, carbon dioxide would be released to the atmosphere, contributing to global warming. |
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As one example, the peatlands of the former Soviet Union were calculated to be removing 52 Tg of carbon per year from the atmosphere. |
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It was all laughter and pisstaking as we boarded via the back ramp and into the smell of diesel and carbon monoxide inside the tank deck. |
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This prompted many nations to negotiate and sign the Kyoto treaty, which set mandatory limits on carbon dioxide emissions. |
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The plants will power about 39,000 homes and save 27,850 tonnes of carbon emissions per year. |
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The same volume of atmospheric methane has a higher global warming potential than atmospheric carbon dioxide. |
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He stepped back and opened his bag and took out a printed pad of D.O.A. forms and began to write over a carbon. |
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House insulation is another way of reducing energy consumption and carbon footprint, as well as double glazing and draught-proofing. |
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It was a small, stuffy, defunct room, of mahogany, and deathly enlargements of photographs of departed people done in carbon. |
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When heated with sulphuric acid, this dicarboxylic acid forms cochinelic acid and carbon dioxide. |
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Hex nut is made of carbon steel or Monel, while parts coming in contact with corrodents are made of metals suited to the particular applications. |
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We could cryosequester the carbon in our garbage by throwing it in a glacial crevasse. |
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Cryosequestration in permafrost has helped limit the amount of carbon emitted to the atmosphere from soil. |
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The logistics company will geosequester carbon dioxide to offset its carbon footprint. |
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The EU has adopted an emissions trading system to incorporate carbon emissions into the economy. |
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The zone focusses on technology for low carbon vehicle development, marine offshore and subsea engineering, petrochemicals and renewable energy. |
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The reducing agent is commonly a source of carbon such as coke, or in earlier times charcoal. |
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The carbon is thus oxidized in two stages, producing first carbon monoxide and then carbon dioxide. |
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The landside is usually made of solid medium carbon steel, and is very short except on the rear bottom of the plow. |
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During apneic and hypopneic events, carbon dioxide loading occurs which is then unloaded during the interevent period. |
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In those sites, carbon arc lamps were used to simulate the flash of tram cables. |
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This suggests that London's pollution affects the spatial distribution of natural carbon in the river sediments. |
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As plants took hold on the continental margins, oxygen levels increased and carbon dioxide dropped, although much less dramatically. |
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By the Cisuralian Epoch, both oxygen and carbon dioxide had recovered to more normal levels. |
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Calcium carbonate dissolved into water may precipitate out where the water discharges some of its dissolved carbon dioxide. |
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They generally have from 5 to 40 carbon atoms per molecule, although trace amounts of shorter or longer molecules may be present in the mixture. |
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Alkanes with more than 16 carbon atoms can be refined into fuel oil and lubricating oil. |
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The shortest molecules, those with four or fewer carbon atoms, are in a gaseous state at room temperature. |
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In the UK, its most important facility is on the Isle of Wight, where it has a carbon composite centre of excellence. |
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These lamps have higher efficiency than filament lamps, but the carbon rods are short lived and require constant adjustment in use. |
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Invented by Humphry Davy around 1805, the carbon arc was the first practical electric light. |
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Luca is now usually placed deep underground, in a fissure in hot igneous rocks, where she fed on sulphur, iron, hydrogen and carbon. |
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The carbon used in fireworks is produced from wood and does not lead to more carbon dioxide in the air. |
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The fermenting of the remaining available sugar generates a small amount of carbon dioxide that forms a protective layer, reducing air contact. |
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Keg beer is a term for beer which is served from a keg, under external carbon dioxide pressure. |
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Ochre is not an organic material, so carbon dating of these pictures is often impossible. |
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The black carbon concentrations are highly impacted by the truck traffic due to the traffic congestion during the massive construction. |
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The merger brought back designer, John Barnard, interested in using carbon fibre composite. |
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To save weight, a number of components were crafted using lighter materials such as carbon fiber and titanium. |
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Each featured increased levels of downforce, upgraded carbon ceramic brakes, unique lightweight wheels and an anniversary dedication plate. |
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According to Renault, the new factory emits zero carbon and industrial liquid discharges. |
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This is because the carbon brakes need to be very hot to function properly, and the water cools them too much. |
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Developing such low carbon energy assets to their full potential forms part of the Anglesey Energy Island project. |
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New York City has focused on reducing its environmental impact and carbon footprint. |
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Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into steel. |
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The A380 is the first commercial airliner to have a central wing box made of carbon fibre reinforced plastic. |
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This can be explained by the fact that as the poor people in the society become more wealthy, it increases their yearly carbon emissions. |
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In 1838, Belgian lithographer Marcellin Jobard invented an incandescent light bulb with a vacuum atmosphere using a carbon filament. |
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Starr acquired a patent for his incandescent light bulb involving the use of carbon filaments. |
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These lamps used a carbon rod from an arc lamp rather than a slender filament. |
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Swan then turned his attention to producing a better carbon filament and the means of attaching its ends. |
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Twice as efficient as carbon filament lamps, Nernst lamps were briefly popular until overtaken by lamps using metal filaments. |
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In 1885, an estimated 300,000 general lighting service lamps were sold, all with carbon filaments. |
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Early lightbulbs with carbon filaments also used carbon monoxide, nitrogen, or mercury vapor. |
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The carbon deposited on the filament by this treatment improved the uniformity and strength of filaments as well as their efficiency. |
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This transformed the carbon into graphite which further strengthened and smoothed the filament. |
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These lamps were more efficient than even graphitized carbon filaments and could operate at higher temperatures. |
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Since tantalum metal has a lower resistivity than carbon, the tantalum lamp filament was quite long and required multiple internal supports. |
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The resistance of a carbon filament is higher when it is cold than when it is operating. |
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By 1860 he was able to demonstrate a working device, and obtained a British patent covering a partial vacuum, carbon filament incandescent lamp. |
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In 1864, Swan patented the transfer process for making carbon prints, a permanent photographic process. |
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In 1879, the Bell company acquired Edison's patents for the carbon microphone from Western Union. |
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The report concluded that there was no net carbon benefit in the foreseeable future taking only the route to Manchester. |
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Additional carbon from building a new rail route would be larger in the first ten years at least than a model were no new rail line was built. |
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The High Speed Rail Command paper published in March 2010 stated that the project was likely to be roughly carbon neutral. |
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However this was dependent on the government making rapid progress on reducing carbon emissions from UK electricity generation. |
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Carbon, hydrogen and oxygen are widely available as water and carbon dioxide. |
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The predominant product gases are methane, hydrogen, carbon monoxide and carbon dioxide. |
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Meanwhile, as an article in the Bulletin of Atomic Sciences pointed out in March 2010, UCG could result in massive carbon emissions. |
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Additionally, gels, foams, and compressed gases, including nitrogen, carbon dioxide and air can be injected. |
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The organisation has produced a climate change plan which contains details about how SEPA will reduce its own carbon emissions. |
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During winter, when organisms die, carbon is deposited down, resulting to a black layer. |
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Some of the highly branched alcohols and many alcohols containing more than 12 carbon atoms are solids at room temperature. |
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Thus, methanol, ethanol, and propanol are miscible in water because the hydroxyl group wins out over the short carbon chain. |
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This metabolic reaction produces ethanol as a waste product, just like aerobic respiration produces carbon dioxide and water. |
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A more controlled elimination reaction is the Chugaev elimination with carbon disulfide and iodomethane. |
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In 1785, Joseph Black, Professor of Chemistry and discoverer of carbon dioxide, founded the world's first Chemical Society. |
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At times during the paleoclimate, carbon dioxide levels were two or three times greater than today. |
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Most geologists believe it was composed primarily of nitrogen, carbon dioxide, and other relatively inert gases, and was lacking in free oxygen. |
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When the permafrost melts, it releases carbon in the form of carbon dioxide and methane, both of which are greenhouse gases. |
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In the 1970s the tundra was a carbon sink, but today, it is a carbon source. |
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The Glenrothes Energy Network is a project that will supply low carbon heat to businesses and houses in Glenrothes. |
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Modern curling brush handles are usually hollow tubes made of fibreglass or carbon fibre instead of a solid length of wooden dowel. |
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Radiocarbon analysis allows fossil and nonfossil sources of black carbon and organic carbon to be identified. |
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Lead can form multiply bonded chains, a property it shares with its lighter homolog, carbon. |
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This changed in 1940 when carbonic anhydrase, an enzyme that scrubs carbon dioxide from blood, was shown to have zinc in its active site. |
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The stone circle has been carbon dated as being from the bronze age. |
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A methane molecule is made up of a single carbon with four hydrogens. |
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In preparing the contract, we'll make a carbon copy for our records. |
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Since the carbon tax was repealed, emissions have again continued to rise. |
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This new home is simply a carbon copy of the one down the street. |
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These rising levels of carbon dioxide are acidifying the oceans. |
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In cases where the OH functional group is bonded to an sp2 carbon on an aromatic ring the molecule is known as a phenol, and is named using the IUPAC rules for naming phenols. |
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The properties of hydrocarbons can be correlated with the carbon number. |
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The algal or cyanobacterial cells are photosynthetic and, as in plants, they reduce atmospheric carbon dioxide into organic carbon sugars to feed both symbionts. |
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Cattle and rice farms release methane, fertilized fields release nitrous oxide, and the cutting down of rainforests to grow crops or raise livestock releases carbon dioxide. |
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By incorporating carbon fiber into parts of existing blade systems, manufacturers may increase the length of the blades without increasing their overall weight. |
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It has therefore been posited by historians that Willoughby and his crew died not from exposure to the elements, but from carbon monoxide poisoning. |
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This is due to carbon dioxide's very long lifetime in the atmosphere. |
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This motion, together with decreasing atmospheric carbon dioxide concentrations, caused a rapid cooling of Antarctica and allowed glaciers to form. |
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Don't ask for a new globe just because the old one needs dusting. The old-style carbon lamps wasted electricity when they began to fade and it was economy to replace them. |
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Anyone can determine for himself whether certain wire is high carbon or not. Heat a piece of the wire red hot and while red plunge into water till cold. |
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Mitigation of climate change are actions to reduce greenhouse gas emissions, or enhance the capacity of carbon sinks to absorb GHGs from the atmosphere. |
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The energy and carbon from coal underpinned the development of the iron and steel, chemicals, shipbuilding and other industries around these ports. |
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The climate and carbon cycle appears to be rather unsettled during the Silurian, which has a higher concentration of isotopic excursions than any other period. |
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However, due to the ecological importance of peatlands in storing carbon and their rarity, the EU is attempting to protect this habitat by fining Ireland if they are dug up. |
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European mammoths had a major diet of C3 carbon fixation plants. |
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While tropical rainforests have more biodiversity and turnover, the immense conifer forests of the world represent the largest terrestrial carbon sink. |
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Over 1,500 tons of carbon dioxide per year can be eliminated by using a one megawatt turbine instead of one megawatt of energy from a fossil fuel. |
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A long record of carbon isotopes, which is reflective of primary production trends of the Bering Sea, exists from historical samples of bowhead whale baleen. |
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Techniques under research fall generally into the categories solar radiation management and carbon dioxide removal, although various other schemes have been suggested. |
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Each pair of pages of the book is interlaid by carbon paper. |
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Inevitably these transport adds to carbon dioxide emissions. |
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Passengers in general, it stated, are becoming increasingly aware of the environmental effects of air travel, and Eurostar services emit much less carbon dioxide. |
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Ancient iron production did not become widespread until the ability to smelt iron ore, remove impurities and regulate the amount of carbon in the alloy was developed. |
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Lead's lighter carbon group congeners form stable or metastable allotropes with the tetrahedrally coordinated and covalently bonded diamond cubic structure. |
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This is less applicable to compounds in which lead forms covalent bonds with elements of similar electronegativity such as carbon in organolead compounds. |
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Lead, like carbon, is predominantly tetravalent in such compounds. |
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As the world ocean is the principal component of Earth's hydrosphere, it is integral to life, forms part of the carbon cycle, and influences climate and weather patterns. |
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Local increases in chlorophyll a, enhanced carbon incorporation rates and changes in phytoplankton species composition were associated with the seamount. |
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When burned, petroleum releases carbon dioxide, a greenhouse gas. |
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As in simpler alkanes, carbon in the CFCs bonds with tetrahedral symmetry. |
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The partnership originally focused on McLaren's F1 car's aerodynamics, eventually moving on to carbon fibre techniques, wireless systems and fuel management. |
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In 1820 Faraday reported the first synthesis of compounds made from carbon and chlorine, C2Cl6 and C2Cl4, and published his results the following year. |
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With the help of Charles Drummond Ellis, he worked on the ionisation of phosphorus, and the photochemical reaction of carbon monoxide and chlorine. |
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According to the Consumer Federation of America, sealing unwanted leaks around homes is an excellent way to cut home energy costs and decrease the household carbon footprint. |
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Such land derived runoff of sediment nutrients, carbon, and contaminants can have large impacts on global biogeochemical cycles and marine and coastal ecosystems. |
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Life affects climate through its role in the carbon and water cycles and through such mechanisms as albedo, evapotranspiration, cloud formation, and weathering. |
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Tourist destinations are shifting to low carbon emissions following the trend of visitors more focused in being environmentally responsible adopting a sustainable behavior. |
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The rest of the unaccounted carbon bonds are occupied by chlorine atoms. |
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The carbon dioxide in the beer lends a lighter texture to the batter. |
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Changes in the salinity of the oceans are thought to contribute to global changes in carbon dioxide as more saline waters are less soluble to carbon dioxide. |
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The changes in oceanic biology and vertical mixing between winter and summer in the North Atlantic Gyre seasonally alter the total amount of carbon dioxide in the seawater. |
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Individuals may purchase these systems to reduce or eliminate their dependence on grid electric power for economic reasons, or to reduce their carbon footprint. |
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They joined in 2009 in a commitment to reducing their carbon footprint. |
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Compared with other low carbon power sources, wind turbines have some of the lowest global warming potential per unit of electrical energy generated. |
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The best known example is dry ice, the solid form of carbon dioxide. |
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Aerobiology has been little studied, but there is evidence of nitrogen fixation in clouds, and less clear evidence of carbon cycling, both facilitated by microbial activity. |
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The chemically toughened glass panel in the roof has been replaced with carbon fibre to give the cabin a more enclosed, cocooned environment, as has the engine bay cover. |
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The peatland ecosystem is the most efficient carbon sink on the planet, because peatland plants capture CO2 naturally released from the peat, maintaining an equilibrium. |
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There is concern about the environmental impact as peat fields are flammable, drainage degrades ecosystems, and burning of peat releases carbon dioxide. |
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Peat has a high carbon content and can burn under low moisture conditions. |
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Another potential source of gas is the underground controlled combustion of coal seams to produce syngas, a mixture of hydrogen, methane and carbon monoxide. |
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Most are phototrophic, although some are mixotrophic, deriving energy both from photosynthesis and uptake of organic carbon either by osmotrophy, myzotrophy, or phagotrophy. |
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Organic material tends to be denser than seawater, so it sinks into open ocean ecosystems away from the coastlines, transporting carbon along with it. |
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Per hectare, it holds twice as much carbon dioxide as rain forests. |
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Of these, the best known are dinoflagellate genera such as Noctiluca and Dinophysis, that obtain organic carbon by ingesting other organisms or detrital material. |
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Interannual trends have established that carbon dioxide concentrations within this gyre are increasing at a similar rate to that occurring in the atmosphere. |
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The visible orange flames in that incident were the result of a rich mixture of hydrogen to oxygen combined with carbon compounds from the airship skin. |
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The sugars are joined together by phosphate groups that form phosphodiester bonds between the third and fifth carbon atoms of adjacent sugar rings. |
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This symbiotic relationship enhances the bacterium's ability to survive in an aquatic environment, as the exoskeleton provides the bacterium with carbon and nitrogen. |
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A few, however, are obligate heterotrophs, while others can live heterotrophically in the absence of light, provided an appropriate organic carbon source is available. |
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Planktonic copepods are important to global ecology and the carbon cycle. |
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The effects can be combined into an equivalent amount of carbon dioxide. |
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After many experiments, first with carbon in the early 1880s and then with platinum and other metals, in the end Edison returned to a carbon filament. |
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Carbon fiber is a high modulus synthetic fiber made from carbon atoms. |
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Stable isotopes of hydrogen, oxygen, carbon, nitrogen, and sulphur can establish avian migratory connectivity between wintering sites and breeding grounds. |
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He suggests reforestation took place, allowing more carbon dioxide uptake from the atmosphere, which may have been a factor in the cooling noted during the Little Ice Age. |
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This fertilises phytoplankton and other plants on the surface of the ocean and contributes to ocean productivity and the drawdown of atmospheric carbon. |
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A 2008 study of sediment cores and soil samples further suggests that carbon dioxide uptake via reforestation in the Americas could have contributed to the Little Ice Age. |
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The dramatic shift, taking less than ten years and without government funding, lowered electricity costs and slashed the country's carbon footprint. |
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It reacts with carbon, halogens, nitrogen, silicon and hydrogen. |
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Methane is a greenhouse gas 22 times more powerful than carbon dioxide. |
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In terms of shells, carbon consists of an incomplete outer shell, which comprises 4 electrons, and thus has 4 electrons available for covalent or dative bonding. |
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Common properties of hydrocarbons are the facts that they produce steam, carbon dioxide and heat during combustion and that oxygen is required for combustion to take place. |
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Oxalate is such a carbon source because soils generally harbour oxalotrophic bacteria that may derive all their energy needs from oxalates via the oxalate-carbonate pathway. |
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Look first at any structure to see if there is a carbon with two oxygens attached. Hemiacetals, hemiketals, acetals, and ketals are all alike in that regard. |
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At high pressure and temperature, the organic material of a dead organism undergoes chemical reactions in which volatiles such as water and carbon dioxide are expulsed. |
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Finally, explosive volcanic eruptions release the greenhouse gas carbon dioxide and thus provide a deep source of carbon for biogeochemical cycles. |
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Above this energy level is a triply degenerate set of MOs that involve overlap of the 2p orbitals on carbon with various linear combinations of the 1s orbitals on hydrogen. |
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Early gliders were mainly built of wood and metal but the majority of sailplanes now use composite materials incorporating glass, carbon or aramid fibres. |
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It has been suggested that accumulating reactive nitrogen in the environment may have consequences as serious as putting carbon dioxide in the atmosphere. |
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As a patient has decreased ability to perfuse tissue, conversion of glucose into carbon dioxide and energy in the cellular level is also decreased. |
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The peat in bogs is an important place for the storage of carbon. |
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Allowing for the costs of pollution, particularly the carbon emissions of other forms of production, onshore wind power is the cheapest form of energy in the United Kingdom. |
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Cyanobacteria use water, carbon dioxide and sunlight to create their food. |
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Nanothermal interfaces is one the key areas of current research and includes technologies such as double sided carbon nanotube foils and metal nanosprings and nano-wires. |
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Classic blades were made out of wood, but modern blades are made from more expensive and durable synthetic material, the most common being carbon fiber. |
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The deeper layer becomes oxygen starved and can become saturated with carbon dioxide, or other gases such as sulfur dioxide if there is even a trace of volcanic activity. |
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