<span>The birthrate and the death rate were about equal.</span>
Sunlight and carbon dioxide.
It lets you have specific location on the map.
Answer:
Abiotic factors include water, sunlight, oxygen, soil and temperature.
Answer:
Explanation:
Oxygen is of no use to them, so they release it into the air. So there's a simple explanation for the Great Oxidation Event. It was the cyanobacteria, pumping out unwanted oxygen, that transformed Earth's atmosphere.
