MasteryExams
Geography • Physical GeographyMedium

In the structural classification of ocean basins, which zone represents the gently sloping submerged margin of the continent extending from the coast to an abrupt change in slope called the shelf break?

A. Continental rise
B. Abyssal plain
C. Continental shelf✓ Correct Answer
D. Oceanic trench

💡 Solution & Explanation

The continental shelf is the shallow, submerged edge of the continental landmass characterized by high biological productivity and rich petroleum and natural gas deposits. The continental rise forms a thick wedge of sediment at the base of the continental slope. Abyssal plains are vast, flat regions covering the deep ocean floor. Oceanic trenches are steep-sided depressions formed at convergent plate boundaries. Continental shelves cover roughly seven percent of the total ocean area.

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