Littoral (coastal) states do not end where atlas maps suggest they do. what is the term for the area where all the rights of a coastal state prevail?

Territorial Sea

Explanation:

   Territorial sea is the continuous strip of land to the territory (land), in which the State exercises its sovereignty and jurisdiction. The extension is no longer delimited by the State, being subject to manifestations of the International Law that disciplines the matter. Same as adjacent sea, coastal sea, territorial sea.

your answer is 20. hope this !