Question

Earth's tides are primarily caused by _____.

A). the Sun
B).the moon
C).wind
D).underwater earthquakes

Answer 1

B.) The moon

There you go.

Answer 2

Tides are caused by moon.

Step-by-step explanation:

The tides are primarily formed by the gravitational attraction of moon on the surface of oceans.

At the time of full moon and new moon, the tides are higher because at that time, there is a gravitational pull of sun also which adds up with the gravitational pull of moon.