Fact 1: Aplants require water for survival.

Fact 2: Water is a compound of hydrogen and oxygen.

Given the two facts above, answer the question "For survival, plants require a compound made of what?" with the following options: 
- carbon dioxide
 - Hydrogen and oxygen
 - organic molecules
 - deoxyribonucleic acid
 - carbohydrates
 - Converted sugar
 - genetic material
 - solid, liquid, gas


 

  Hydrogen and oxygen       