Question

The proliferation of cyanobacteria was a major contributing factor to the appearance of advanced organisms. Identify the gas released by the cyanobacteria that supports this statement

a.) ferrous Oxide
b.) oxygen
c.) hydrogen

Answer 1

the correct answer is B) oxygen.

Answer 2

The correct answer to the question is this one: b.) oxygen.

The proliferation of cyanobacteria was a major contributing factor to the appearance of advanced organisms. The gas released by the cyanobacteria that supports this statement is oxygen. Cyanobacteria use photosynthesis. The released gas in photosynthesis is O2 (oxygen)