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poizon [28]
3 years ago
11

How did early life help create the ozone layer?

Biology
1 answer:
Semmy [17]3 years ago
3 0

Answer:The Ozone Hole. One billion years ago, early aquatic organisms called blue-green algae began using energy from the Sun to split molecules of H2O and CO2 and recombine them into organic compounds and molecular oxygen (O2). ... As oxygen in the atmosphere increased, CO2 decreased.

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