Many friends have been to the beach to play, and the air by the sea is also very humid. At the same time, they can enjoy the sea breeze. Many people like to enjoy the beautiful scenery by the sea. As long as you stay by the sea for a while, you will find that the daily high and low tides of the sea are regular, and the water level gap between high tide and low tide is also very large.
So why does the sea rise and fall, and where does the water go back? In fact, high tide and low tide are interrelated, and the total amount of seawater on the earth remains basically unchanged. If you see high tide in one area, there will be a low tide in another sea that we can't see.
It is precisely because of this rise and fall that the sea can temporarily replenish the water that does not rise in other places in the rising tide of one place, thus forming a tide that is conducive to the exchange of the marine environment.
The main reason for this discrepancy is the mutual gravitational pull between the Sun and the Moon and our Planet. The gravitational pull of the Sun and Moon is the main cause of tidal changes, but not all of them. It is also affected by the centrifugal force brought about by the rotation of the Earth. Centrifugal forces cause the seawater to fluctuate with the undulations of the earth's crust.
Finally, what I want to say is that the total amount of seawater remains unchanged. What we see is the rise and fall of the water level. In fact, on the other side of the globe, the water level has changed in reverse, so the total amount of water has not changed. Therefore, of course, the sea water after low tide is still in the sea!