Question

What most likely would happen to the animal populations after chemical spraying kills most of the region's mosquitoes and gnats, both of which are sources of food for frogs?

A.a decrease in both frogs and snakes
B.a decrease in frogs and an increase in grasshoppers
C.an increase in both frogs and snakes
D.a decrease in snakes and an increase in hawks
E.an increase in both snakes and hawks

Answer 1

I'm going to go with A. This is because the population of frogs is definitely decreasing, as they are loosing food. Also, the frogs are prey for the snakes, and if there are no frogs for the snakes to eat, the population of snakes can go down, too.
Hope this helps!