Fact 1: Lakes are formed by precipitation and runoff.

Fact 2: Runoff water is wasted water.

Given the two facts above, answer the question "Lakes are formed by precipitation and what?" with the following options: 
- scarce resources
 - storing water
 - wasted water
 - body water
 - Bodily water
 - erosion
 - flooding
 - reduced heat


 

   wasted water      