In our World

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What is the amount of oxygen in the air in the Earths early atmosphere?
little or no oxygen
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What created the gases of in the early atmophhere?
Volcanos
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What can limestone make?
Glass
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What reduced Carbon diocide in the Early atmosphere?
Water vapours condensed and cooled to form water which fell as rain and filled the hollow crusts.
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What does deforestation mean?
Cutting trees down causing less oxygen for photosynthesis
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Other cards in this set

Card 2

Front

What created the gases of in the early atmophhere?

Back

Volcanos

Card 3

Front

What can limestone make?

Back

Preview of the front of card 3

Card 4

Front

What reduced Carbon diocide in the Early atmosphere?

Back

Preview of the front of card 4

Card 5

Front

What does deforestation mean?

Back

Preview of the front of card 5

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