Fact 1: Clouds are formed by water vapor rising into colder regions of the atmosphere and condensing.

Fact 2: Water vapor will condense to form clouds and precipitation will occur.

Given the two facts above, answer the question "Precipitation occurs when what are formed?" with the following options: 
- Sediment
 - erosion
 - clouds
 - soils
 - seeds
 - stones
 - rain
 - fossils


 

   clouds      