Temperatures would increase. Precipitation would increase. The number of trees in the forest would increase. The insect population in the forest would increase.
I gave my students this multiple choice question: Which would be the most likely effect of a large decrease in the number of woodpeckers in a forest?

Only one answer is correct among these 4 choices:
- Temperatures would increase.
- Precipitation would increase.
- The number of trees in the forest would increase.
- The insect population in the forest would increase.

Could you tell me which one is correct?

The insect population in the forest would increase.