Which one of the following statements about population growth is the only TRUE statement?
a. The size of a population can never exceed the carrying capacity.
b. If a population is at the carrying capacity of the environment, then the birth rate will more or less equal the death rate (i.e. zero population growth).
c. A population that is growing according to the exponential growth model will always end up going to extinction (i.e. dying out).
d. The carrying capacity of the environment is fixed and can never change.
e. None of these is a true statement, they are all false.

b. If a population is at the carrying capacity of the environment, then the birth rate will more or less equal the death rate (i.e., zero population growth).

Explanation:

" Population growth " -

It refers to the increase in the number of population , is known as the population growth .

In the state of zero population growth , the rate of birth will be almost equal to the rate of death .

hence , the correct statement regarding the " population growth " is the statement ( b. ) .