Biology for IGCSE & O level - Transport In Plants (Section 1 - No. 39)
What is the relationship between humidity and transpiration rate?
Higher humidity increases transpiration rate.
Lower humidity decreases transpiration rate.
Higher humidity decreases transpiration rate.
Humidity has no effect on transpiration rate.
Explanation
Higher humidity reduces the water potential gradient between the leaf and the air, thereby decreasing transpiration.
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