Q. Which is the only sea in the world with no coastline?
Answer: Sargasso Sea
Notes: The Sargasso Sea is the only sea in the world with no coastline. It is located in the middle of the North Atlantic Ocean. The Sargasso Sea is named after the Sargassum genus of free-floating seaweed. It is surrounded by four currents: the Gulf Stream, North Atlantic Current, Canary Current, and North Atlantic Equatorial Current. These currents deposit marine plants and refuse into the sea. The Sargasso Sea is known for its calm blue water and brown Sargassum seaweed. The water is exceptionally clear, with underwater visibility of up to 60 m (200 ft). The Sargasso Sea is often associated with the Bermuda Triangle. Bermuda is located in the western part of the Sargasso Sea.