Consider the following statements :1. Tides are of great help in navigation and fishing.2. High tide enables big ships to enter or leave the harbour safely3. Tide prevents siltation in the harbours4. Kandla and Diamond Harbour are tidal ports Which of these statements are correct ?
✓ Correct answer: d) 1, 2, 3 and 4
ExplanationStatement 1 is correct : Tides play a significant role in both navigation and fishing activities.Tides help ships navigate shallow waters by increasing water depth during high tide.They also influence fishing, as certain fish species move with tidal cur- rents, making them easier to catch.Statement 2 is correct : High tides increase the water level in harbors, which is essential for larger ships to enter or leave safe- ly.Without the rise in water levels brought about by tides, large ships might find it difficult to dock or leave the harbor, as they need sufficient water depth to avoid grounding.Statement 3 is correct : The ebb and flow of tidal waters help to flush out silt, sand, and other debris from the harbor area.This natural process reduces the risk of siltation, ensuring that ports and harbors remain navigable by preventing the accumulation of sediments that could otherwise block ships.Statement 4 is correct : Both Kandla Port (in Gujarat) and Diamond Harbour (near Kolkata) are tidal ports, meaning they are influenced by tidal movements.The activities at these ports d
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