UPSC CSE Prelims
Geological Structure of India Previous Year Questions (PYQs)
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Consider the following statements:
- Amarkantak Hills are at the confluence of Vindhya and Sahyadri Ranges.
- Biligirirangan Hills constitute the easternmost part of Satpura Range.
- Seshachalam Hills Constitute the southernmost part of Western Ghats.
How many of the statements given above the correct?
Detailed Explanation:
Answer: Option 4 — None
All three statements contain geographical inaccuracies regarding the location and classification of these hill ranges. Each statement incorrectly identifies either the confluence point or the range association of the respective hills.
❌ Statement 1 – Incorrect: Amarkantak Hills are at the confluence of Vindhya, Satpura, and Maikal Ranges, not Vindhya and Sahyadri Ranges.
❌ Statement 2 – Incorrect: Biligirirangan Hills are located in south-western Karnataka at the junction of Eastern and Western Ghats, not part of the Satpura Range.
❌ Statement 3 – Incorrect: Seshachalam Hills (Tirumala Hills) are part of the Eastern Ghats in Andhra Pradesh, not the southernmost part of Western Ghats.
📝 Short Notes: Major Hill Ranges of India
| Hill Range | Location | Associated Mountain System | Significance |
|---|---|---|---|
| Amarkantak Hills | Madhya Pradesh (Anuppur district) | Junction of Vindhya, Satpura & Maikal Ranges | Origin of Narmada, Son & Johilla Rivers |
| Biligirirangan (BR) Hills | Karnataka-Tamil Nadu border | Junction of Eastern & Western Ghats | BRT Wildlife Sanctuary; biodiversity hotspot |
| Seshachalam Hills (Tirumala) | Andhra Pradesh (Tirupati district) | Part of Eastern Ghats | Famous for Tirupati temple; red sanders habitat |
| Sahyadri Range | Western India (Maharashtra to Kerala) | Another name for Western Ghats | UNESCO World Heritage Site; high biodiversity |
| Satpura Range | Central India (MP, Maharashtra) | Independent range between Narmada & Tapti | East-west oriented; rich in minerals |
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Drainage System and Rivers
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