The very high rainfall of Cherrapunji and Mawsynram in the Khasi Hills is linked with which process?
Answer and explanation
Correct answer: Orographic lifting of moist monsoon winds
The governing concept is orographic, or relief, rainfall. Moisture-laden monsoon winds from the Bay of Bengal move toward the Khasi Hills and are forced to rise when they meet the steep southern slopes. Rising air expands and cools; its water vapour condenses into clouds and produces very heavy rainfall. This process makes option A correct. The exceptional rainfall of Mawsynram and Cherrapunji is therefore connected primarily with the uplift of moist air by relief, not with a change in soil. Option B concerns a cryospheric process, option C is a marine biological-geological process, and option D concerns soil distribution. The mountain barrier and forced ascent are the essential reasoning steps.
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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, or relief, rainfall. Moisture-laden monsoon winds from the Bay of Bengal move toward the Khasi Hills and are forced to rise when they meet the steep southern slopes. Rising air expands and cools; its water vapour condenses into clouds and produces very heavy rainfall. This process makes option A correct. The exceptional rainfall of Mawsynram and Cherrapunji is therefore connected primarily with the uplift of moist air by relief, not with a change in soil. Option B concerns a cryospheric process, option C is a marine biological-geological process, and option D concerns soil distribution. The mountain barrier and forced ascent are the essential reasoning steps.
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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