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16 Cards in this Set
- Front
- Back
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Energy-rich substances formed from the remains of once-living organisms are called?_____
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fossil fuels
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List the three major fossil fuels
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coal, oil, natural gas
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Energy-rich chemical compounds that contain carbon and hydrogen atoms are called?_______
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hydrocarbons
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A solid fossil fuel formed from plan remains is____?
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coal
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True or false
Today, coal provides 23 percent of the energy used worldwide. |
false
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True or false
The major use of coal is to fuel factories. |
false
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Which sentence is true about coal as an energy source.
a. it is the least plentiful fossil fuel in the United States. b. it is difficult to transport. c. it provides a lot of energy when burned. d. it produces less air pollution than other fossil fuels. |
c
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How can coal mining harm the environment?
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coal mining can increase erosion and runoff from mines can cause water pollution
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Another name for oil-the thick, black, liquid fossil fuel is?_____
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petroleum
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Which sentence is true about petroleum?
a. petroleum accounts for more than half the energy produced in the world. b. petroleum fuels most cars, airplanes, trains, and ships. c. the United States consumes a third of all the petroleum produced in the world. d. finding oil is difficult. |
b, c & d
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What can scientists use to test an area for oil without drilling?
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sound waves
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When oil is first pumped out of the ground, it is called?______
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crude oil
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A factory where crude oil is separated into fuels and other products by heating is called a(n)?_________
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refinery
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Compounds that are made from oil are called?______
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petrochemicals
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Which sentence is true about natural gas?
a. it produces a lot of energy. b. it produces more air pollutants than oil. c. it is difficult to transport. d. it is highly flammable. |
a, d
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True or false
Because natural gas is less dense than oil, it often rises above an oil deposit. |
true
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