The size of a bird population increased by two percent in one year. Which of the following could have contributed to the population increase? A a decrease in the death rate of baby birds B an increase in the number of predators C an increase in the number of parasites in the environment
D a decrease in the number of birds being born

A. a decrease in the death rate of baby birds

Explanation:

Only option A would result in an increase of the bird population. This is because if the death rate of baby birds decreased, less baby birds would die and more would grow up, thus increasing the bird population.

I hope this helps!

A.

Explanation:

the others would cause a decrease.

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )