C_{6}H_{12}O_{6} -> 6CO_{2} + 6H_{2}O 6CO_{2} + 6H_{2}O -> C_{6}H_{12}O_{6} +6O_{2} 2H_{2}O -> 2H_{2} + O_{2} 2H_{2} + O_{2} -> 2H_{2}O
I gave my students this multiple choice question: Which of the following represents the process of photosynthesis?

Only one answer is correct among these 4 choices:
- C_{6}H_{12}O_{6} -> 6CO_{2} + 6H_{2}O
- 6CO_{2} + 6H_{2}O -> C_{6}H_{12}O_{6} +6O_{2}
- 2H_{2}O -> 2H_{2} + O_{2}
- 2H_{2} + O_{2} -> 2H_{2}O

Could you tell me which one is correct?

6CO_{2} + 6H_{2}O -> C_{6}H_{12}O_{6} +6O_{2}