Which would happen if more forests were cut down

Without trees, formerly forested areas would become drier and more prone to extreme droughts. When rain did come, flooding would be disastrous. Massive erosion would impact oceans, smothering coral reefs and other marine habitats.

Explanation:

If trees are cut in very large numbers, then there would be scarcity of oxygen, in which it would be very difficult for us to live.

the answer is c) an oak tree