Answer:
the answer is C i know it
Explanation:
i expect brainliest
The cyanobacteria changed the composition of the earth’s atmosphere by evolving oxygen in what is referred to as the Great Oxygenation Event. This also allowed the ozone to be formed and block off most of the UV rays that are destructive to genetic material. Life was, therefore, also able to exist on land other than in water.
Answer:
Fresh Water
Explanation:
Salty water is the most abundant
Population is the answer !