Mawsynram receives the highest average annual rainfall in the world because the Monsoon Winds of the Bay of Bengal strike the _____________ hill.

Correct option is B

The correct answer is (b) Khasi.
Mawsynram, located in the Meghalaya state of India, receives the highest average annual rainfall in the world. The reason for this is the Monsoon Winds from the Bay of Bengal, which carry a large amount of moisture. When these winds reach the Khasi Hills, they are forced to ascend due to the topography (orographic lift). This ascent causes the air to cool and condense, resulting in extremely high rainfall in the region.
Explanation of the Other Options:
1. (a) Western Ghats: Although the Western Ghats do receive heavy rainfall due to the southwest monsoon, they are not associated with Mawsynram.
2. (c) Aravalli: The Aravalli range runs parallel to the direction of the monsoon winds and, as such, does not cause significant rainfall.
3. (d) Chota Nagpur Plateau: This plateau receives moderate rainfall, but it is not related to Mawsynram, which is specifically influenced by the Khasi Hills.
Information Booster:
· The Khasi Hills are part of the Meghalaya plateau and have an elevation that enhances the orographic effect, making Mawsynram and Cherrapunji some of the wettest places on Earth.
· The phenomenon is due to the southwest monsoon, which carries moisture from the Bay of Bengal and hits the Khasi Hills, leading to heavy precipitation.