Question

the ozone layer is important because it protects life from damaging ultraviolet radiation. how did early life help create the ozone layer?

Explanation:

Early life forms like cyanobacteria performed photosynthesis. This process released oxygen as a by - product. Oxygen in the atmosphere then reacted to form ozone, creating the ozone layer.

Answer:

Early life forms such as cyanobacteria carried out photosynthesis, releasing oxygen which reacted to form ozone, thus helping create the ozone layer.