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Svet_ta [14]
3 years ago
13

Which event in Earth's history most directly allowed life to exist on land?

Biology
2 answers:
natita [175]3 years ago
5 0

Answer:

c; Single-celled organisms released oxygen into the air when they photosynthesized.

Explanation:

Got it right on edge

andrew11 [14]3 years ago
3 0

Answer: Single cell organisms absorbed harmful gases from the air when they first formed

Explanation:

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