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faltersainse [42]
3 years ago
12

If cyanobacteria never evolved during earth's history, how would their absence affect the composition of earth's atmosphere?

Biology
1 answer:
Blababa [14]3 years ago
3 0
Cyanobacteria, also known as blue-green algae, are found in vast quantities in fresh and salt water. Cyanobacteria are able to conduct photosynthesis. By utilising energy from the sun, they produce carbohydrates from water and carbon dioxide. As a byproduct, they produce oxygen. So cyanobacteria provided oxygen to the atmosphere that allowed other lifeforms to develop.
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A graduated cylinder contains 10mL of water. A rock is dropped into the cylinder and the water level rises to 17mL. What is the
Travka [436]

Answer:

<h3>7 milliliters or 7 cubic centimeters</h3>

Explanation:

1 cubic centimeter = 1 milliliter

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VladimirAG [237]

Answer:

i think it would be A (aka the first answer)

Explanation:

im sorry if im wrong

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