eroded riverbanks more fertile soils fewer trees near rivers less habitat for aquatic animals
I gave my students this multiple choice question: Flooding rivers can help or harm the environment. Which of these would be a helpful effect from a flood?

Only one answer is correct among these 4 choices:
- eroded riverbanks
- more fertile soils
- fewer trees near rivers
- less habitat for aquatic animals

Could you tell me which one is correct?

more fertile soils