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6 Cards in this Set
- Front
- Back
What is the origin of coal? |
Ancient decaying plants under great heat and pressure |
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What is the origin of petroleum / natural gases? |
Ancient decaying microscopic marine organisms under great heat and pressure |
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When is ozone bad? |
When it’s in smog near Earth’s surface |
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Where is the ozone layer located? |
Stratosphere |
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What is the main use of biomass fuels today? |
Transportation |
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Why are CFC's bad? |
They destroy ozone |