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Which among the following is/are the reason(s) for debris avalanches and landslides in the Western Ghats?
  1. They are tectonically very active and made up of unconsolidated deposits.
  2. Mechanical weathering due to temperature changes is pronounced in this region.
  3. They receive heavy amounts of rainfall over a short period.
Select the correct answer using the code given below.
  • a)
    1 and 2 only
  • b)
    3 only
  • c)
    2 and 3 only
  • d)
    1,2 and 3
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which among the following is/are the reason(s) for debris avalanches a...
o In our country, debris avalanches and landslides occur very frequently in the Himalayas. There are many reasons for this. One, the Himalayas are tectonically active. They are mostly made up of sedimentary rocks and unconsolidated and semi-consolidated deposits. The slopes are very steep.
o Compared to the Himalayas, the Nilgiris bordering Tamil Nadu, Karnataka, Kerala and the Western Ghats along the west coast are relatively tectonically stable and are mostly made up of very hard rocks; but, still, debris avalanches and landslides occur though not as frequently as in the Himalayas, in these hills because.
  • Many slopes are steeper with almost vertical cliffs and escarpments in the Western Ghats and Nilgiris.
  • Mechanical weathering due to temperature changes and ranges is pronounced.
  • They receive heavy amounts of rainfall over short periods.
 
o So, there is almost direct rock fall quite frequently in these places along with landslides and debris avalanches.
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Which among the following is/are the reason(s) for debris avalanches and landslides in the Western Ghats? They are tectonically very active and made up of unconsolidated deposits. Mechanical weathering due to temperature changes is pronounced in this region. They receive heavy amounts of rainfall over a short period. Select the correct answer using the code given below.a)1 and 2 onlyb)3 onlyc)2 and 3 onlyd)1,2 and 3Correct answer is option 'C'. Can you explain this answer?
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Which among the following is/are the reason(s) for debris avalanches and landslides in the Western Ghats? They are tectonically very active and made up of unconsolidated deposits. Mechanical weathering due to temperature changes is pronounced in this region. They receive heavy amounts of rainfall over a short period. Select the correct answer using the code given below.a)1 and 2 onlyb)3 onlyc)2 and 3 onlyd)1,2 and 3Correct answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which among the following is/are the reason(s) for debris avalanches and landslides in the Western Ghats? They are tectonically very active and made up of unconsolidated deposits. Mechanical weathering due to temperature changes is pronounced in this region. They receive heavy amounts of rainfall over a short period. Select the correct answer using the code given below.a)1 and 2 onlyb)3 onlyc)2 and 3 onlyd)1,2 and 3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which among the following is/are the reason(s) for debris avalanches and landslides in the Western Ghats? They are tectonically very active and made up of unconsolidated deposits. Mechanical weathering due to temperature changes is pronounced in this region. They receive heavy amounts of rainfall over a short period. Select the correct answer using the code given below.a)1 and 2 onlyb)3 onlyc)2 and 3 onlyd)1,2 and 3Correct answer is option 'C'. Can you explain this answer?.
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