Official Answer Key & Detailed Solution
Ready to check the official UPSC Answer Key?
Click any option above to test yourself under exam conditions, or reveal the explanation directly.
Correct Answer: Option (D) — 1, 2, 3 and 4
Concept & Option Breakdown
Standard Reference Verified- Statement 1 is correct: High tides raise the water level in shallow channels allowing navigation, and tidal currents concentrate marine life aiding fishing.
- Statement 2 is correct: High tide raises the water depth over shallow bars at harbor mouths, enabling large draft vessels to enter and leave port safely.
- Statement 3 is correct: The strong bidirectional flow of tidal currents flushes out accumulated sediment and debris from harbor basins, reducing siltation.
- Statement 4 is correct: Kandla (Deendayal Port) in the Gulf of Kutch and Diamond Harbour along the Hooghly estuary are well-known tidal ports in India.
Practice Full-Length & Sectional Prelims Mocks on this Interface
50 simulated tests in the APT Prelims Test Series (₹1,493) or 1-on-1 Mentorship with Avinash Sir.