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Question

Difficulty: MediumPhysical Geography of the World

Arrange the following major ocean floor relief zones in their correct sequence starting from the coastline moving seaward towards the deep ocean basin:

  1. 1Continental Shelf
  2. 2Continental Slope
  3. 3Continental Rise
  4. 4Abyssal Plain

Answer

The correct seaward sequence of ocean floor relief features from the coastline to the deep ocean basin is Continental Shelf, followed by Continental Slope, Continental Rise, and finally Abyssal Plain.
The ocean basin relief transitions systematically from the continent towards the deep ocean. Moving seaward from the coast, one encounters the shallow Continental Shelf, followed by the sharply inclined Continental Slope, then the thick sediment fan of the Continental Rise, and ultimately the broad, flat Abyssal Plain.

Step-by-Step Solution

1
Identify the feature adjacent to the land boundary.
The Continental Shelf is the submerged extension of the continent directly adjoining the coast.
It represents the shallowest part of the ocean margin.
2
Determine the transition zone from shallow shelf to deep ocean.
The Continental Slope begins at the shelf break and plunges steeply downward.
It marks the boundary between continental crust and oceanic region.
3
Identify the depositional zone at the base of the slope.
The Continental Rise forms at the base where thick sediment fans merge.
It eases the gradient between the steep slope and the level ocean floor.
4
Locate the ultimate flat deep-sea floor.
The Abyssal Plain extends across vast distances of the deep ocean basin.
It sits at depths of 3,000 to 6,000 meters, representing the deep oceanic floor.

Key Concept

Ocean floor relief divisions and continental margin morphometry
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Topics

Physical Geography of the World

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