Question

Increase in light intensity increases photosynthesis initially and then stabilises. Now if concentration increases, photosynthesis also increases.

• A. hydrogen
• B. carbon dioxide
• C. hydrogen
• D. nitrogen

Answer 1

The correct option is B carbon dioxide

Photosynthesis increases with light intensity only upto a certain extent, and then it gets stabilised at a point. But if at this point carbon dioxide concentration is increased, then photosynthesis also increases further.