If relative humidity is very high at a place why will sweat dry slowly?
Answer and explanation
Correct answer: The air is already nearly saturated with water vapour
When relative humidity is high, the air already contains a large amount of water vapour. It can therefore take in less additional vapour from sweat, so the rate of evaporation decreases and sweat dries slowly. Option B incorrectly links high humidity with lowering sweat below its freezing point. Exam tip: higher humidity generally means slower evaporation.
Frequently asked questions
What is the correct answer to this question?
The air is already nearly saturated with water vapour
Why is this the correct answer?
When relative humidity is high, the air already contains a large amount of water vapour. It can therefore take in less additional vapour from sweat, so the rate of evaporation decreases and sweat dries slowly. Option B incorrectly links high humidity with lowering sweat below its freezing point. Exam tip: higher humidity generally means slower evaporation.
Which subject and chapter does this question cover?
This is a Class 12 Geography question. Chapter: Water in the Atmosphere. Topic: Humidity, evaporation, and condensation.
