You are presented with the question "What causes sun blocking and temperature drops?" and the following answer choices: 
- sweating
 - energy barrier
 - condensation
 - peachleaf willow
 - scattered light
 - global warming
 - Greenhouse gases
 - Dehydration

Now knowing that condensation causes clouds to form and with increasing cloud blocking the sun, temperatures drop considerably, choose the best answer.


 

   condensation      