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Ostrovityanka [42]
3 years ago
9

Starting billions of years ago, algae lowered the

Biology
2 answers:
WINSTONCH [101]3 years ago
5 0
Im pretty positive it’s c
snow_lady [41]3 years ago
3 0

Answer:

Starting billions of years ago, algae lowered the

atmosphere.

levels in the carbon dioxide - C.

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