Which Of The Following Is Correct Equation For Photosynthesis?

1. 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
2.   C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O  
3.   CO₂ + H₂O→ CH4 + O₂  
4.   6CO₂ + 12H₂O + Sunlight → C₆H₁₂O₆ + 6O₂

Answer: (4) 6CO₂ + 12H₂O + Sunlight → C₆H₁₂O₆ + 6O₂

Explanation

This equation accurately represents the complete process of photosynthesis, including sunlight energy as the driving force, water and carbon dioxide as reactants, and glucose and oxygen as products.