Fact 1: Lakes are formed by precipitation and runoff.

Fact 2: Runoff from precipitation is a natural part of the water cycle.

Given the two facts above, answer the question "What are some of the steps that forms a lake?" with the following options: 
- decomposition and respiration
 - storing water
 - photosynthesis and solar energy
 - near the shoreline
 - precipitation and run-off
 - perspiration and excretion
 - The area was once underwater
 - At the peak of a mountain


 

     precipitation and run-off    