Explanation:

The rhythmic rise and fall of ocean water twice in a day is called a tide. The Earth’s rotation
combined with the Moon’s and Sun’s gravitational pull on the planet causes tides.
There are two bulges in the Earth due to the gravitational pull that the Moon exerts; one on
the side facing the Moon, and the other on the opposite side that faces away from the
Moon, The bulges move around the oceans as the Earth rotates, causing high and low tides
around the globe.
A person would weigh much less on the Moon: The Moon has much weaker gravity than
Earth, due to its smaller mass, so you would weigh about one sixth (16.5%) of your weight
on Earth.
The Moon has quakes: These are caused by the gravitational pull of the Earth. Lunar
astronauts used seismographs on their visits to the Moon, and found that small
moonquakes occurred several kilometres beneath the surface, causing ruptures and cracks.
Scientists think the Moon has a molten core, just like Earth.