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

Fact 2: Cloud cover and precipitation  cause temperature fluctuations.

Given the two facts above, answer the question "What can cause temperature fluctuations." with the following options: 
- mountain formations
 - remove toxic material from the stomach before it is absorbed
 - ocean tides
 - trees growing
 - Something that can be converted to kinetic and heat energy by a motor
 - keeping food fresh for long periods of time
 - water vapor rising into colder regions of the atmosphere and condensing
 - skin redness and pain, possible swelling, blisters, fever, headaches


 

       water vapor rising into colder regions of the atmosphere and condensing  