Biology · PYQ NEET UG 2017

With reference to factors affecting the rate of photosynthesis, which of the following statements is NOT correct?

1. Light saturation for \( \text{CO}_2 \) fixation occurs at 10% of full sunlight.
2. Increasing atmospheric \( \text{CO}_2 \) concentration upto 0.05% can enhance \( \text{CO}_2 \) fixation rate.
3. \( \text{C}_3 \) plants responds to higher temperatures with enhanced photosynthesis while \( \text{C}_4 \) plants have much lower temperature optimum.
4. Tomato is a greenhouse crop which can be grown in \( \text{CO}_2 \)-enriched atmosphere for higher yield.