The success of photosynthetic bacteria, particularly cyanobacteria, led to an increased oxygen concentration in Earth’s atmosphere. This process, known as the Great Oxygenation Event, significantly transformed the atmosphere by introducing oxygen as a major component due to the photosynthesis carried out by these microorganisms.
How did the success of photosynthetic bacteria change Earth’s atmosphere?(1 point)
Responses
decreased hydrogen concentration
decreased hydrogen concentration
decreased oxygen concentration
decreased oxygen concentration
increased oxygen concentration
increased oxygen concentration
increased hydrogen concentration
increased hydrogen concentration
1 answer
9 answers