The moon's gravity causes oceans to bulge. The moon's gravitational power is responsible for the rising and falling tides.The moon affects the ocean on the sides of the planet facing and facing away from it which causes oceans to bulge away from the earth. On one side ocean bulges away from the earth as planet is being pulled towards the moon and on the other side the ocean bulges towards the moon. Bulges facing towards the moon is high tides and bulges not facing towards moon is low tides.
