What will be the effects on stomata, if relative humidity is $100 %$ in atmosphere?

Completely open

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Partially open

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No effects

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Closed

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Solution

The correct option is A Completely open
The opening and closing of stomata are governed by the turgor movement in the guard cells. The changes in guard cell turgidity are brought about by the inflow or outflow of potassium ions. If the relative humidity is 100% in the atmosphere stomata is completely open.

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