Question

removing trees can increase the frequency and duration of ______.
a migrations
b winters
c droughts
d rainfall

Explanation:

Trees play a key role in maintaining local water cycles via transpiration and soil moisture retention. Removing them reduces water recycling into the atmosphere and impairs soil's ability to hold moisture, which raises how often and how long droughts last. Migrations, winters, and rainfall are not directly increased in frequency/duration by tree removal in this context.

Answer:

c. droughts