- The climate is low in humidity in nevada
- Lack of moisture in the air causes low amounts of rainfall
- Hence, the low humidity in nevada causes the low amounts of rainfall

So, the low humidity in nevada causes the low amounts of rainfall
[Question]The average rainfall in Nevada is about 7 inches per year. The most likely reason for the low amount of rainfall is the
[Context]- The climate is low in humidity in nevada 
- Lack of moisture in the air causes low amounts of rainfall