Answer:
A census is a count of the population in particular areas.
Explanation:
The rate of evolution is the means of
Darwinism
Answer:
The nitrogen cycle is a repeating cycle of processes during which nitrogen moves through both living and non-living things: the atmosphere, soil, water, plants, animals and bacteria. In order to move through the different parts of the cycle, nitrogen must change forms.
Wind because its not mechanically eroding them..
Yes, short answer, I can not give you the specifics (consult your biology textbook)