Question

fill in the blank: __________ is a vertical section of ocean water from surface to bottom. abyssal plain water column continental shelf thermocline

Explanation:

An abyssal plain is a flat - bottomed area of the ocean. A continental shelf is the edge of a continent that lies under the ocean. A thermocline is a layer in the ocean where the temperature changes rapidly. A water column is the vertical section of ocean water from the surface to the bottom.

Answer:

B. Water column