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: Locate the shallowest and deepest features.
- The Continental shelf (B), the shallowest feature, is the submerged extension of a continent.- The Abyssal plains (C) are the deepest, vast, flat regions of the ocean basin.

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

Step 3: Arrange the sequence from shallow to deep.The order from the coast 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 for deep to shallow order.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.