1. Natural gas is a any of various liquid hydrocarbon compounds. b a sedimentary rock containing the waxy solid hydrocarbon kerogen. c a crystalline solid form of natural gas and water molecules, found in permafrost and deep sea (cold) sediments. d gaseous hydrocarbons, especially methane (CH4). 2. Geothermal energy is a the rate of increase of temperature with depth in the Earth. b a hot spring in which water intermittently boils, sending a tall column of water and steam into the air. c energy derived from the internal heat of the Earth. d deep aquifers under unusually high pressure. 3. The ultimate source of energy in fossil fuels is a The energy of the plants and animals from which the fuel is formed. b biomass. c the Earth's internal heat. d the sun. e all of these are correct. 4. A core meltdown is a the process by which atomic nuclei combine to produce larger nuclei. b the process during which fission of one nuclear triggers fission of others. c the process by which atomic nuclei are split into smaller fragments. d a nuclear reactor accident resulting from loss of core coolant and subsequent overheating. 5. Biodiesel is a energy derived from living organisms or from organic matter. b methane derived from decaying organic matter. c fuel derived from vegetable oil or animal fat. d reduction of a pollution hazard by use of organisms.
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a
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any of various liquid hydrocarbon compounds. |
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b
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a sedimentary rock containing the waxy solid hydrocarbon kerogen. |
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c
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a crystalline solid form of natural gas and water molecules, found in permafrost and deep sea (cold) sediments. |
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d
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gaseous hydrocarbons, especially methane (CH4). |
2. Geothermal energy is
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a
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the rate of increase of temperature with depth in the Earth. |
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b
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a hot spring in which water intermittently boils, sending a tall column of water and steam into the air. |
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c
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energy derived from the internal heat of the Earth. |
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d
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deep aquifers under unusually high pressure. |
3. The ultimate source of energy in fossil fuels is
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a
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The energy of the plants and animals from which the fuel is formed. |
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b
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biomass. |
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c
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the Earth's internal heat. |
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d
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the sun. |
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e
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all of these are correct. |
4. A core meltdown is
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a
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the process by which atomic nuclei combine to produce larger nuclei. |
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b
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the process during which fission of one nuclear triggers fission of others. |
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c
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the process by which atomic nuclei are split into smaller fragments. |
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d
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a nuclear reactor accident resulting from loss of core coolant and subsequent overheating. |
5. Biodiesel is
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a
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energy derived from living organisms or from organic matter. |
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b
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methane derived from decaying organic matter. |
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c
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fuel derived from vegetable oil or animal fat. |
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d
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reduction of a pollution hazard by use of organisms. |
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