Question

What are tides?

• A. Tides are the natural flow of oceans.
• B. Tides are channels of water moving in a particular direction in the oceans.
• C. Alternate rise and fall of water on the ocean surface is called tide.
• D. Tides are periodic movements of ocean water due to the Moon and Sun’s gravity.

Answer 1

The correct option is D Tides are periodic movements of ocean water due to the Moon and Sun’s gravity.

Tides are periodic movements of ocean water due to the Moon and Sun’s gravity. There are two types of tides: High tide and Low tide which are influenced by the gravitational pull of the Sun over the Moon's. The tides are of great help to fishing. Tides at some places take away the mud brought down by rivers and prevent silting.