Test: Distribution Of Oceans & Continents - 1 - UPSC MCQ

The slowest rate of plate movement can be seen in Artic ridge. It is less than 2.5 cm/yr.

The Nazca Plate, named after the Nazca region of southern Peru, is an oceanic tectonic plate in the eastern Pacific Ocean basin off the west coast of South America.

On Earth, there are seven major plates and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. 

A very deep oceanic trench is formed next to a high continental mountain range when the oceanic crust is diving under the continental crust at a convergent boundary.

Alfred Wegener—a German meteorologist put forth a comprehensive argument in the form of “the continental drift theory” in 1912.

It is also called the'Ring of Fire', because of the existence of the active volcanoes.

Continental Slope

• The continental slope connects the continental shelf and the ocean basins. Hence, the correct answer is Continental slope.
• It begins where the bottom of the continental shelf sharply drops off into a steep slope.
• The gradient of the slope region varies between 2-5°.
• The depth of the slope region varies between 200 and 3,000 m.

It is a sedimentary rock formed because of the glacier deposits.

The Philippine Plate is an oceanic tectonic plate, between the Pacific Ocean to the east and Asiatic plate on the west.

A tectonic plate (also called lithospheric plate) is a massive, irregularly-shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.