Fact 1: Aplant requires nutrients to grow.

Fact 2: Carbon dioxide is a plant nutrient.

Given the two facts above, answer the question "What does a plant require for its growth?" with the following options: 
- deoxyribonucleic acid
 - hydrogen and oxygen
 - Organic compounds
 - Electrical energy
 - heat energy
 - sunlight
 - Energy.
 - Carbon dioxide


 

        Carbon dioxide 