Compare the Florida continental shelf in the Gulf of Mexico with the shelf on the east coast of Florida.

Florida continental shelves showing wide shelves except for the southeast coast. Shelf sand resources off the southeast coast are mainly inter-reefal sand deposits and sand ridges elsewhere. The continental shelf of the Gulf of Mexico extends from the shore line of parts of the United States and of Mexico outward into the Gulf of Mexico to the abrupt change in bottom slope which is the boundary between this shelf and the continental slope.

Explanation:

Continents are the seven main divisions of land on Earth. A continental shelf extends from the coastline of a continent to a drop-off point called the shelf break. From the break, the shelf descends toward the deep ocean floor in what is called the continental slope. The widths of the continental shelves vary

the correct answer is 2 and 4