Question

In this chapter, you learned about the major features of the ocean floor. Match each feature to the appropriate label.

1. Abyssal Plain
2. Mid-Ocean Ridge
3. Continental Shelf
4. Trench

A. Submarine canyon
B. Broad, flat area
C. Deep, elongated depression
D. Underwater mountain range

Answer 1

The abyssal plain matches with the broad, flat area, the mid-ocean ridge with the underwater mountain range, the continental shelf is usually associated with submarine canyons, and a trench is a deep, elongated depression on the ocean floor.

Step-by-step explanation:

The major features of the ocean floor include:

1. Abyssal Plain - B. Broad, flat area
2. Mid-Ocean Ridge - D. Underwater mountain range
3. Continental Shelf - A. Submarine canyon (Note: While a continental shelf itself is not a submarine canyon, submarine canyons are often found cutting into the continental shelf.)
4. Trench - C. Deep, elongated depression

To explain further, the abyssal plain is a vast, flat area on the deep ocean floor, while the mid-ocean ridge is a continuous underwater mountain range formed by tectonic activities at divergent plate boundaries. The continental shelf is the extended perimeter of each continent, which is relatively shallow compared to the open ocean. It can feature submarine canyons which are deep valleys cut into the shelf. Finally, a trench is a deep, narrow depression in the ocean floor often found at convergent plate boundaries where one tectonic plate subducts under another.