Question

The submerged portion of the continent is called

Answer 1

Answer: it is called

continental mass

Answer 2

The submerged portion of the continent is called continent shelf.

Continent shelf are covered by many layers of silts and also sand. The largest continent shelf is found in the coast of Siberia and it end in the Arctic Ocean.

Continent shelf was actually above the water during the ice age periods. During the glacial periods the oceans flowed on the continent leading to the formation of shelf.