Answer:
Photosynthesis adds carbon dioxide to the air
Explanation:
The cyanobacteria changed the composition of the earth’s atmosphere by evolving oxygen in what is referred to as the Great Oxygenation Event. This also allowed the ozone to be formed and block off most of the UV rays that are destructive to genetic material. Life was, therefore, also able to exist on land other than in water.
Yes it occurs naturally on everyone :)
20kg piece of pure gold, i think........
The new species would try and crossbreed possibly, or see them as weak and kill them off and take their resources.
