<h3>ANSWER:</h3>
In case of plants there is a process called PHOTOSYNTHESIS occurs. A photosynthesis is a process in which the carbon and water involves and as a result oxygen plus glucose forms. And because of that plants cause the atmospheric Carbon dioxide decreases as they use the carbon dioxide in the atmosphere.
They think that people started as a fish and there was a resolution into a bigger fish then into a land creature then into a monkey then into a man. They think that the earth was a little rock at the beginning but then other rocks joined it and it became 1 big planet. But this is just what they think.
There are many different factors, but some are: the amount of natural resources (food, water, etc.), amount of predator/prey, and availability of shelter.
The answer is C
The more plants there are, the more consumers there are. If there aren't enough plants, the consumers have no way of getting energy, and therefore cannot survive. The species also matters, because certain species of plants can only be eaten by certain species of consumers.
