Question

Very short answer type question.
How are the tides caused?

Answer 1

The strong gravitational pull exerted by the sun and the moon on the earth's surface causes tides.

High and low tides are caused by the moon. The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides.