_______ are the largest reservoir of water.

_____ is the main source of energy on the earth

Height of waves depend upon

________ current raises temperature of the coastal areas

Warm current flow along the _____ coast of continents.

The time interval between a high tide and a low tide is-

______ is an example of tidal port

Huge sea waves are called ____-

Tidal energy is a ________ source of energy.

In coastal areas , warm currents causes _________

__________ is caused due to gravitational pull of the moon.

Grand Banks is the name of __________

_____ % of fresh water present on earth surface.

_____ is the continuous movement of a mass of water in a particular direction