In order to make room for the increasing population, new cities and towns are formed. A side effect of the construction of these cities and towns is that

A.

fewer people are able to live comfortably.

B.

the amount of pollution in the area is decreased.

C.

pollution increases and habitats are impacted.

D.

new natural resources are created with the cities.

Pollution increases and habitats are impacted. (C)

Explanation:

a side effect of construction of cities and towns have nothing to do with being comfortable so A is not right

the amount of pollution will increase so maybe B

pollution will increase, as said in B, and habitats will be impacted so maybe C

new natural resources will not be created with these cities so not D

so now its either B or C, well B said pollution rises but so did C and C said more stuff like how habitats are impacted

So the answer is C