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4
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Natural gas can have a smell of __________, when a substance is added to it.
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5
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This type of rock is where natural gas can be found underground.
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6
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Natural gas is a _________ fossil fuel.
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7
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What is natural gas primarily composed of?
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9
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Natural gas has a very ______ range of flammability.
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10
|
What country has one of the largest percent of natural gas reserves?
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1
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There is enough natural gas to last the United States about _____ years or more.
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2
|
Natural gas releases ____ carbon dioxide than coal and oil.
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3
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A disadvantage to this resource is that it is ____________ like all fossil fuels.
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8
|
About ____ of the natural gas reserves are in the United States.
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