Question

What are waves?

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

Answer 1

The correct option is D Alternate rise and fall of water on the ocean surface are called waves.

Alternate rise and fall of water on the ocean surface are called waves. This alternate rise and fall happens when winds keep blowing over the surface of oceans. As the winds hit the water surface, the force causes the water to rise and fall.