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6 Cards in this Set
- Front
- Back
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ICE AGE
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a period of glacier advance
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aerosols
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are solid particles or liquid drops in gas
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sunspots
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dark cooler reigns of the sun
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greenhouse effect
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water vapor, carbon dioxide, and methane, absorb the heat leaving earths surface
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fossil files
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energy-rich substances formed from the remains of organisms
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global warming
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the gradual increase of temperature in the earths atmosphere
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