Ocean & Submarine relief — Flashcards

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Earth is called a 'watery planet' because about 71% of its surface is covered with water, mostly in the form of oceans. It is the only planet in the solar system with such abundant water, which suppor…

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The five major oceans are: Pacific Ocean, Atlantic Ocean, Indian Ocean, Antarctic (Southern) Ocean, and Arctic Ocean.

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The Pacific Ocean is the largest ocean and covers about 46.6% of Earth's surface. It is also the deepest ocean.

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The average depth of the world's oceans is approximately 3,800 metres.

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A continental shelf is the gently sloping, shallow submerged extension of a continent that extends from the coastline to a depth of about 200 metres. It has a gradient of 1° to 3° and supports marine …

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Continental shelves are important because they are rich in marine life due to sunlight penetration, support large-scale fishing, and contain valuable resources like petroleum and natural gas. Examples…

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The continental slope is the steeply sloping region that lies seaward of the continental shelf. It connects the shelf to the deep ocean floor and has a gradient of 2° to 5°. Its depth ranges from 200 …

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The base of the continental slope is marked by the continental rise, which is a belt of sediments deposited by underwater landslides and turbidity currents.