Fact 1: Drought is when amount of precipitation decreases.

Fact 2: Conclusions Floods and drought are realities of desert life.

Given the two facts above, answer the question "What has decreased precipitation?" with the following options: 
- wind
 - rainforest
 - swampland
 - deserts
 - burning
 - forest
 - herbicide
 - cold air


 

    deserts     