Increase in $CO_2$ concentration around the leaf results in:

  • A
    Rapid opening of stomata
  • B
    Partial closing of stomata
  • C
    Complete closure of stomata
  • D
    There will be no effect on stomatal opening

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Photosynthetic yield is maximum at the

Water stress causes the stomata to $A$ hence reducing the $B$ availability. Here $A$ and $B$ refer to:

$A$: Dark reactions of photosynthesis are temperature-controlled processes.
$R$: Most of the reactions are enzymatic in nature.

Who proposed the Law of Limiting Factors?

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