an increase in primary consumer population an decrease in acid rain an decrease in size of habitat an increase in producers
I gave my students this multiple choice question: Which change would have the greatest negative impact on the survival of an owl species?

Only one answer is correct among these 4 choices:
- an increase in primary consumer population
- an decrease in acid rain
- an decrease in size of habitat
- an increase in producers

Could you tell me which one is correct?

an decrease in size of habitat