Answer: D- a mechanism for evolution
Explanation: The mechanism for evolution refers to the changes in allele frequencies within a single population.
There are four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow
One of the main controversial issues in population genetics is concerned with the relative importance of both mechanisms in determining evolutionary changes
Answer:
I think the third one is correct
Answer - If the population increases for farming then that means the farm equipment used , such as tractors will increase Air pollution .
The answer you are looking for and us correct is TRUE