Fact 1: Lakes are formed by precipitation and runoff.

Fact 2: Rain is also known as precipitation.

Given the two facts above, answer the question "What are lakes formed by?" with the following options: 
- ice wedging
 - hot and cold
 - rain and runoff
 - Condensation
 - rice and beans
 - Physical weathering
 - flooding
 - ice and sun


 

   rain and runoff      