Answer the following question given this paragraph: 

Runoff is precipitation that flows over the surface of the land. This water may travel to a river, lake, or ocean. Runoff may pick up fertilizer and other pollutants and deliver them to the water body where it ends up. In this way, runoff may pollute bodies of water.


Q: What is precipitation that flows over the surface of the land?

 Choices:

- blizzard

- seawater

- storm surge

- runoff

A:
runoff
