The oceans and seas rise and fall at definite intervals. This rise and fall happens because of the gravitational force between the Earth and the Moon.

          We know that the Moon has a weak gravitational force. But it is strong enough to cause these periodic rises and falls known as tides.

          As our planet rotates, the Moon’s pull is exerted on different parts of the Earth. The Moon’s gravitational force exerts a pull on the oceans that generates tidal energy. It causes both the Earth and the oceans to bulge out in the direction of the Moon and away from it, and is known as tides. Because of the rotation of the Earth around the Sun, two tides occur each day- high tide and low tide.

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