Fact 1: Aplant requires water to grow.

Fact 2: For example, For water, H 2 O is the molecular formula.

Given the two facts above, answer the question "What does a plant require to grow?" with the following options: 
- Enzymes
 - sodium
 - Pesticides
 - Plantations
 - Farmers
 - sugar
 - H 2 O
 - photons


 

       H 2 O  