Choose correct option:
Statement 1: Tide is defined as alternate rise and fall of the ocean's surface.
Statement 2: It is caused by the gravitational interaction between the moon and the earth.
Statement 1 is correct and statement 2 is the correct explanation of it.
Tides are periodic rise and fall of large mass of water in the oceans. Tides are caused by the gravitational interaction between the Earth and the Moon. The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon. Actually, forces exerted by the Moon, Sun, and rotation of the Earth collectively cause tides.