Consider the following statements: I. Tides are of great help in navigation and fishing. II. High tide enables big ships to enter or leave the harbour safely. III. Tide prevents siltation in the harbours. IV. Kandla and Diamond Harbour are tidal ports. Which of these statements are correct?
- AI and IV
- BII, III and IV
- CI, II and III
- DI, II, III and IVCorrect
Explanation
The correct answer is D because all four statements accurately describe the characteristics and benefits of tides.
Statement I is correct because high tides increase the water level, allowing fishing boats to move closer to the shore and helping navigators manage coastal waters.
Statement II is correct because many shallow harbors require high tide to increase the depth of the water, which allows large vessels with deep drafts to enter or exit safely without hitting the seabed.
Statement III is correct because the strong flow of water during the ebb and flow of tides carries away mud and sediment, which helps prevent silt from accumulating in the harbor channels.
Statement IV is correct because Kandla in Gujarat and Diamond Harbour in West Bengal are prominent examples of tidal ports in India that rely on tidal fluctuations for maritime operations.
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