How the presence of life on earth has brought about environmental change Flashcards

1
Q

Atmospheric O2

A

Released via photolysis by photosynthetic bacteria (later plants) formed ozone layer

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2
Q

Atmospheric CO2

A

Naturally released via volcanic action and is a greenhouse gas- essential for temperature regulation

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3
Q

Water cycle

A

rain, evaporation, transpiration working together to spread water into land masses

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