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| rain with dissolved pollutants such as sulphur dioxide that makes the rain acidic |
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| the layer of gas that surrounds the Earth |
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| where an unbalanced account of a problem is given to push forward one point of view over another |
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| a fuel mad up from living things-usually from plants grown as a crop, such as sugar cane or sugar beet, which is used to produce ethanol, or from seed oils such as corn oil, which is used to create biodiesel |
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| another word for burning. A chemical reaction between a fuel and oxygen that gives out heat. |
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| when a fuel burns with a good suply of oxygen to form carbon dioxide and water |
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| the natural form of the fossil fuel oil. A mixture of hydrocarbons |
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| turning salt water to fresh water,'removing the salt'. |
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| purifying by boiling a liquid, collecting and cooling the gas, and then condensing it back to liquid |
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| tearing a compound apart using electricity |
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| the type of alcohol in alcholic drinks. Can be used as fuel |
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| coal, oil and gas; fuels that formed millions of years ago from the remains of plants and tiny animals |
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| a tall tower used in industrial fractional distillaton. Different fractions condense at different levels |
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| a substance which is burnt to get energy |
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| a rise in the average temperature of the earth that could lead to climate change, with more storms and droughts in different parts of the world |
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| a compound made from carbon and hydrogen atoms only |
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| when a fuel burns without a good enough supply of oxygen, to form deadly carbon monoxide (and/or soot) and water |
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| turned into a liquid (in case of air, by cooling to a very low temperatures). |
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| reduce friction; for example, oil in an engine or grease on a wheel |
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| the chemical name for natural gas |
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| tiny particles. carbon particulates are tiny bits of carbon that get into the atmosphere from diesel exhausts |
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| a choking mixture of particulates, nitrogen oxides and ozone that forms in cities when car exhausts react under strong sunlight |
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| a process in plants that converts water and carbon dioxide from the air into glucose. Oxygen is given off as a waste gas. The reaction uses energy from the sun |
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| to give off radiation in the form of electromagnetic waves like light or infared |
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| use the same material over and over again |
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| something that is left behind. for example, when wood burns it leaves a residue of ash |
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| an unpleasant mixture of fog and smoke that was commmon in the 1940s and 1950s |
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| the amount of soot (carbon) produced by burning a fuel |
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| being able to keep doing the same thing over and over again without causing harm to the environment. |
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| development that involves balancing the need for economic development, standards of living and respect for the environment |
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| how thick or runny a liquid is. low viscosity is very runny, high viscosity is thick |
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