The region that is periodically submerged between the land and the ocean is called the zone.

The zone that is periodically submerged between the land and the ocean is the littoral zone. In addition, this oceanic zone is the one that is closest to the coastline. Common animals that usually lives in the littoral zone are chitons, crabs, green algae, snails, starfishes, and isopods. 

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Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.