Make a list of countries/states around the world that insects currently do not reside in.

Iceland, and states like Washington DC. , South Dakota, Connecticut, Idaho, New Hampshire, Delaware, North Dakota, Illinois.

Explanation:

Iceland is one of the only places where people live without insects.

The reason why Iceland does not have mosquitos or other insects is its oceanic climate that keeps them away.

The insects freeze 3 times a year, which makes their survival in Iceland impossible.

The other states are not completely insect-free, however, their number is so small that is considered as like they don't exist.

a population evolve

it can affect the plants by how hot or cold the temperature

explanation:

it can affect the plants by how hot or cold the temperature is and the amount of precipitation can affect the plants cause it needs to have reasonable amount