Question

In which layer of the atmosphere is water vapour present?

• A. Troposphere
• B. Ionosphere
• C. Mesosphere
• D. Stratosphere

Hint:

Water vapour is most abundant in the troposphere, the layer where weather occurs, and it plays a key role in cloud formation and precipitation.

Answer 1

The Correct Option is A

Step 1: Understanding atmospheric layers.
The Earth's atmosphere is divided into several layers. The troposphere is the layer closest to the Earth's surface, and it contains most of the Earth's water vapour, weather phenomena, and clouds. The ionosphere and mesosphere do not contain significant amounts of water vapour.
Step 2: Conclusion.
Thus, the correct answer is (A) Troposphere.