rainfall. animal populations. the reproduction of algae. the evaporation of ocean water.
I gave my students this multiple choice question: Fertilizers that enter the ocean from farm runoff can cause an increase in

Only one answer is correct among these 4 choices:
- rainfall.
- animal populations.
- the reproduction of algae.
- the evaporation of ocean water.

Could you tell me which one is correct?

the reproduction of algae.