Respuesta :

Smriti098

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.

:-))

reaganmichael51

Answer:

Cyanobacteria

Explanation:

The answer is tiny organisms known as cyanobacteria, or blue-green algae.

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