MCQ
Main factor which limits the rate of photosynthesis on a clear day is
- AChlorophyll
- BLight
- ✓$CO_2$
- DWater
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$\begin{array}{|p{0.3\linewidth}|p{0.5\linewidth}|} \hline Column-I & Column-II\,\,(Amount\,\,of\,\,CO_2\,\,mm\,Hg) \\ \hline (a)\,\,Alveoli & (1)\,\,40 \\ \hline (b)\,\,Tissue & (2)\,\,45 \\ \hline (c)\,\,Blood\,\,without\,\,O_2 & (3)\,\,40 \\ \hline (d)\,\,Blood\,\,with\,\,O_2 & (4)\,\,45 \\ \hline \end{array}$