You are presented with the question "The sun causes water to evaporate more, which can cause drying and what?" and the following answer choices: 
- flooding
 - raining
 - Pollution
 - root growth
 - erosion
 - snowing
 - cracking
 - hailing

Now knowing that the sun causes water to evaporate more quickly by adding heat and high humidity can cause mildew, while dry heat and direct sunlight can cause drying and cracking, choose the best answer.


 

       cracking  