Atmosphere

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what gives out gases in the early atmphere?
volcanoes
1 of 5
how did green plants change the atmosphere
increase levels of oxygen
2 of 5
ozene layer allows evolution of
complex animals
3 of 5
human activity
deforestation
4 of 5
volcanic activity produces more
carbon dioxide, sulfur dioxide
5 of 5

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Card 2

Front

how did green plants change the atmosphere

Back

increase levels of oxygen

Card 3

Front

ozene layer allows evolution of

Back

Preview of the front of card 3

Card 4

Front

human activity

Back

Preview of the front of card 4

Card 5

Front

volcanic activity produces more

Back

Preview of the front of card 5

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