How does humidity affect the rate of evaporation? Explain why clothes dry faster on a dry day than on a humid day.
BiologyClass 9CBSEAnswered 12 May 2026
Answer
Humidity is the amount of water vapor present in the air. A higher humidity decreases the rate of evaporation. This is because if the air already contains a large amount of water vapor, it can hold less additional water vapor. On a humid day, the air is already saturated with water vapor, reducing the space for more water molecules to evaporate from the clothes. On a dry day, the air has less water vapor, allowing more water to evaporate from the clothes, thus making them dry faster.
Suggested Q&A
Biology · Class 9- BiologyClass 9A boy runs along a circular track of radius 7 meters. If he completes one full round in 22 seconds, calculate his average speed and the magnitude of his average velocity for this round.
- BiologyClass 9What is the function of stomata in the epidermis of plant leaves?
- BiologyClass 9Describe the general characteristics of connective tissues that set them apart from other animal tissues.
- BiologyClass 9Distinguish between primary growth and secondary growth in plants, indicating which meristems are responsible for each.
- BiologyClass 9What is the role of intercalated discs in cardiac muscle tissue?
- BiologyClass 9Enlist the major types of cells found in blood and their specific functions.