Question

Arrange the following according to the depth of occurrence starting from deep to shallow.
A. Continental slope
B. Continental shelf
C. Abyssal plains
D. Continental rise

• A. A, C, B, D
• B. C, D, A, B
• C. D, C, B, A
• D. B, A, D, C

Hint:

Visualize walking from a beach into the deep ocean. You walk on the Shelf, then fall down the Slope, land on the pile of sediment at the bottom called the Rise, and then walk out onto the flat Abyssal Plain. The question asks for the reverse order.

Answer 1

The Correct Option is B

Step 1: Identify the deepest and shallowest features.
- The Continental shelf (B) is the shallow, submerged extension of a continent. It is the shallowest feature listed. - The Abyssal plains (C) are the vast, flat, deep regions of the main ocean basin. They are the deepest feature listed.

Step 2: Place the intermediate features.
- The Continental slope (A) is the steep incline that marks the boundary between the continental shelf and the deep ocean basin. - The Continental rise (D) is a wedge of sediment that accumulates at the base of the continental slope. It is therefore deeper than the slope but shallower than the abyssal plain.

Step 3: Form the sequence from shallow to deep. The order starting from the coast and moving to the deep ocean is: Continental shelf (B) \(\rightarrow\) Continental slope (A) \(\rightarrow\) Continental rise (D) \(\rightarrow\) Abyssal plain (C).

Step 4: Reverse the sequence to get the order from deep to shallow. The required order is: Abyssal plain (C) \(\rightarrow\) Continental rise (D) \(\rightarrow\) Continental slope (A) \(\rightarrow\) Continental shelf (B). The sequence is C, D, A, B.