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प्रश्न
Which of the following is an external factor affecting the rate of transpiration?
पर्याय
Number of stomata
Exposed surface
Humidity
Sunken stomata
उत्तर
Humidity
Explanation:
The atmospheric humidity determines the rate of transpiration. The diffusion of water vapour from substomatal space is slow if the humidity is greater than that.
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 (i) |
 (ii) |
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