You are presented with the question "What is created from cycles of freezing and thawing water?" and the following answer choices: 
- Something that is on the Moon
 - swamp vegetation
 - Something that cracks rocks
 - sedimentary rocks
 - A transportation fuel
 - fissures of hot, acidic water
 - Something inside the earth
 - Something that flies

Now knowing that cycles of freezing and thawing water cause ice wedging and under the pressure of the innumerable wedges of ice, the rock cracks, choose the best answer.


 

   Something that cracks rocks      