fish births increase fish populations decrease sediment on the bottom of the bay decreases the rate of water runoff into the bay increases
I gave my students this multiple choice question: Excess nitrogen fertilizers sometimes drain into waterways that flow into the Chesapeake Bay. This nitrogen may cause algae blooms, which reduce dissolved oxygen in the water. How does nitrogen negatively affect the Chesapeake Bay?

Only one answer is correct among these 4 choices:
- fish births increase
- fish populations decrease
- sediment on the bottom of the bay decreases
- the rate of water runoff into the bay increases

Could you tell me which one is correct?

fish populations decrease