Lack of moisture in the air causes low amounts of rainfall, and if there is enough moisture in the clouds, rain is produced. Given these facts, what's one reason it won't rain among the following options:
- fissures of hot, acidic water
 - a hemisphere is tilted away from the sun
 - Warm and cold air meet
 - The clouds don't have enough water
 - The clouds have too much water
 - Too much moisture in the environment
 - decreases the freezing point
 - erosion from rivers


 

    The clouds don't have enough water     