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DENIUS [597]
3 years ago
11

Cyanobacteria increased the levels of carbon dioxide in the atmosphere. please select the best answer from the choices provided

true or false
History
2 answers:
Hitman42 [59]3 years ago
6 0

Answer:

True

Explanation:

tresset_1 [31]3 years ago
3 0

Answer:

it is false

Explanation:

hope this helps

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