Question

How did cyanobacteria change life on earth?a. They produced food from light. c. They became extinct. b. They moved onto land. d. They turned into a gas.

Answer 1

a litterl ans a they produ food frm light

Step-by-step explanation:

Answer 2

The correct answer is A. They produced food from light

Thanks to them, the atmosphere began to oxidize which made it more possible for life to exist and develop. They created oxygen as a byproduct of photosynthesis.