Question

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 safely
3. Tide prevents siltation in the harbours
4. Kandla and Diamond Harbour are tidal port
Which of these statements are correct?

• A. 1 and 4
• B. 2, 3 and 4
• C. 1, 2 and 3
• D. 1, 2, 3 and 4

Answer 1

The correct option is D 1, 2, 3 and 4

Tides move water in and out and this helps in better fishing. The reason is fish are easier to catch when they feed and tides dictate this. Small fishes gets confused during turbulent waters of tide and get cauught. Large fishes feed during tide gets trapped.

During high tide water rushes into harbours. High tides makes the sea water rush into the mouth of the river. This helps big ships to enter or exit harbour safely.

Tides take away the terrigenous material bought by the rivers at the river harbours and prevents siltation.

High tides are very advantageous for ships to move in and out in some ports like kandla, Mangalore and Diamond harbour port.

The correct answer is option D.