Answer:
The moon
Step-by-step explanation:
Since the Moon is a relatively large object in space that is very close to the Earth, its gravity actually pulls Earth’s water towards it. Wherever the moon is, as it orbits the Earth, there is a high tide ‘bulge’ that stays lined up with the Moon. The sun also plays a a role in this since it has a gravitational pull much greator than the moon but due to it being much farther away, it causes tides only half as strong as the ones from the moon.