Heavy rainfall in the Khasi Hills is linked with which atmospheric-relief process?
Answer and explanation
Correct answer: Orographic lifting of moist monsoon winds
The governing concept is orographic rainfall. Moisture-laden monsoon winds from the Bay of Bengal move toward the Khasi Hills. When the air encounters the elevated hills, it is forced to rise. Rising air expands and cools; water vapour then condenses into clouds and produces intense rainfall on the windward slopes. Therefore option A is correct. Glacial deposition is a landform-building process involving ice, lava flow is volcanic, and sandstorms are wind-driven events in arid regions. Cherrapunji and Mawsynram are famous examples of very heavy rainfall associated with this relief-controlled uplift.
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What is the correct answer to this question?
Orographic lifting of moist monsoon winds
Why is this the correct answer?
The governing concept is orographic rainfall. Moisture-laden monsoon winds from the Bay of Bengal move toward the Khasi Hills. When the air encounters the elevated hills, it is forced to rise. Rising air expands and cools; water vapour then condenses into clouds and produces intense rainfall on the windward slopes. Therefore option A is correct. Glacial deposition is a landform-building process involving ice, lava flow is volcanic, and sandstorms are wind-driven events in arid regions. Cherrapunji and Mawsynram are famous examples of very heavy rainfall associated with this relief-controlled uplift.
Which subject and chapter does this question cover?
This is a Class 10 General Knowledge question. Chapter: Indian Geography. Topic: Mountains and Plateaus of India.
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