Which term describes the gently sloping submerged extension of a continent, granitic rock overlain by sediments, with features similar to the edge of the nearby continent?

Which term describes the gently sloping submerged extension of a continent, granitic rock overlain by sediments, with features similar to the edge of the nearby continent?

• A. Continental Margin
• B. Abyssal Hill
• C. Continental Shelf
• D. Bathymetry

Answer: (C)

The main idea here is identifying the shallow, nearshore extension of a continent that sits under seafloor sediments and mirrors the land on the continent itself. This feature is the continental shelf. It lies on continental crust, which is granitic in many regions, and it is covered by sediments deposited from the land and coastal processes. Because it forms a submerged continuation of the continental edge, it shares geological characteristics with the mainland, even though it is underwater. Think of it as the gentle, broad ramp from the coastline out to where the seafloor slopes more steeply. That transition zone marks the shelf edge, after which the slope drops away toward the deep ocean. The other terms don’t fit this specific description. The continental margin is the broader zone including the shelf, slope, and rise; the abyssal hill is a feature on the deep abyssal plain, far from the continent’s edge; bathymetry is the measurement of ocean depths, not a landform itself.

The main idea here is identifying the shallow, nearshore extension of a continent that sits under seafloor sediments and mirrors the land on the continent itself. This feature is the continental shelf. It lies on continental crust, which is granitic in many regions, and it is covered by sediments deposited from the land and coastal processes. Because it forms a submerged continuation of the continental edge, it shares geological characteristics with the mainland, even though it is underwater.

Think of it as the gentle, broad ramp from the coastline out to where the seafloor slopes more steeply. That transition zone marks the shelf edge, after which the slope drops away toward the deep ocean.

The other terms don’t fit this specific description. The continental margin is the broader zone including the shelf, slope, and rise; the abyssal hill is a feature on the deep abyssal plain, far from the continent’s edge; bathymetry is the measurement of ocean depths, not a landform itself.