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16 Cards in this Set
- Front
- Back
What is coal made of?
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remains of trees and other plants millions of years ago
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Which is the most plentiful fossil fuel?
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coal
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how is coal gotten from the ground? what do they use?
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mined and machines
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How is mining dangerous?
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it increases erosion and causes air pollution when burned
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describe oil.
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thick black liquid formed from the remains of small animals that lived in the ocean etc.
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Where are oil deposits?
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deep below the surface
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How do scientists see where oil is?
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they use sound waves
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What is another name for oil
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petroleum
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When petroleum first comes out of the ground, what is it called? How does it turn into actual petroleum?
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crude oil. It must be refined
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How much energy is produced by oil in the world?
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1/3
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What is natural gas made out of?
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mixture of methane and other gases. it also forms from the same organisms as oil does.
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How does narutal gas's weight affect its location underground?
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it is less dense so it rises above oil deposits
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how do people get natural gas to where it will be used?
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pipelines
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How long are all pipelines in the US?
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from the moon and back twice
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What can natural gas be compressed in?
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tanks
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what is good about natural gas?
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it supplies alot of energy and gives off less pollutants than oil or coal.
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