Fact 1: Heating salt water causes the water to evaporate while the salt remains.

Fact 2: Oceans contain salt water.

Given the two facts above, answer the question "what can be heated causing H2O to evaporate and NaCl to remain?" with the following options: 
- vinegar
 - Sun
 - heat
 - table salt
 - energy
 - oceans
 - Energy.
 - freshwater


 

      oceans   