A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water known as a shelf sea. Much of the shelves were exposed during glacial periods and interglacial periods.\n\nShallow water zone of intertidal area on the continental shelf is called as?
Step-by-step reasoning:
a shelf sea
To answer the question, consider the following: A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water known as a shelf sea.

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Thus, the answer is a shelf sea