3 years ago

What organisims allowed for the build up of oxygen in the atmosphere?

2 answers:

5 0

Answer:

The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen.

:-))

Margarita [4]3 years ago

4 0

Answer:

<u>Cyanobacteria</u>

Explanation:

The answer is tiny organisms known as <u>cyanobacteria</u>, or blue-green algae.

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