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Difficulty: EasyPhysical Geography of the World

The ocean floor consists of distinct relief zones extending from the mainland coast into the deep ocean. Arrange the following major ocean floor relief features in sequence starting from the coast moving seaward toward the deep ocean basin. Which order represents the correct spatial sequence from land to deep ocean?

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

Answer

The correct seaward sequence of ocean floor relief features starting from the continental coastline is Continental Shelf, followed by Continental Slope, Continental Rise, and finally Abyssal Plain.
Moving seaward from the continental shoreline, the ocean floor transitions sequentially across the continental margin to the deep ocean floor: Continental Shelf (shallow coastal platform) → Continental Slope (steep incline) → Continental Rise (gentle sediment apron at the base of the slope) → Abyssal Plain (flat deep ocean floor).

Step-by-Step Solution

1
Identify the feature closest to the coast
The Continental Shelf is the submerged extension of the continent adjacent to the shoreline.
It forms the shallow margin of the ocean basin closest to land.
2
Identify the transition zone descending steeply into deep water
The Continental Slope forms the steep drop-off directly seaward of the shelf break.
It marks the boundary between the continental block and the deep ocean basin.
3
Identify the thick depositional zone at the bottom of the slope
The Continental Rise is located at the base of the continental slope.
Sediments transported down submarine canyons accumulate here before reaching the abyssal floor.
4
Identify the deep flat ocean basin floor
The Abyssal Plain forms the vast, flat region of the deep ocean floor.
It represents the abyssal oceanic crust zone far from the continental landmass.

Key Concept

Ocean Floor Topography and Continental Margins
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Topics

Physical Geography of the World

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