More cards in this set

Card 6

Front

Roughly what percentage of incoming solar radiation is absorbed by the Earths surface?

Back

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Card 7

Front

The infrared radiation that is emitted by the Earths surface is partly absorbed by what in the atmosphere?

Back

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Card 8

Front

Carbon Dioxide concentration is increased by human activities in what way?

Back

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Card 9

Front

A positive feedback mechanism is.......

Back

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