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.
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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