More cards in this set

Card 6

Front

What did the increase in O2 result in?

Back

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Card 7

Front

What does this do?

Back

Preview of the front of card 7

Card 8

Front

What can this cause?

Back

Preview of the front of card 8

Card 9

Front

What happened when the simple animals appeared?

Back

Preview of the front of card 9

Card 10

Front

What does the Ammonia from the volcanoes decompose to?

Back

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Card 11

Front

What happened to these two elements?

Back

Preview of the front of card 11

Card 12

Front

What is today's atmosphere now made up of? Give the % of each answer.

Back

Preview of the front of card 12