This is another term for the ocean floor.

• A. Continental shelf
• B. Seafloor
• C. Ocean floor
• D. The abyssal plain

Answer: (D)

The seafloor is the general term for the ocean bottom. It describes the entire surface that lies beneath the water, from shallow shelves near continents to deep trenches. The abyssal plain, while part of the seafloor, is a specific, broad flat region found in deep ocean waters, not a name for the whole ocean floor. The continental shelf is the submerged edge of a continent and is only a portion of the seafloor. So, the best fit for “another term for the ocean floor” is seafloor.