The by-product of photosynthesis is
- ACO2
- BO2
- Cenergy
- DSugar
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (b) O2
Explanation
Photosynthesis follows 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂, where glucose (sugar) is the product and oxygen (O₂) is released as the by-product.
CO₂ and water are reactants, not by-products; energy is consumed (input), not produced as a byproduct.