Fact 1: Some precipitation that falls on land may soak into the ground, becoming groundwater.

Fact 2: Rain is also known as precipitation.

Given the two facts above, answer the question "what falls on land, soaking into the ground and becoming groundwater?" with the following options: 
- dead organisms
 - river
 - hydrogen
 - floods
 - rain
 - H 2 O
 - weathering
 - h2o


 

     rain    