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In Earth's evolution the lithosphere is mainly related to what?

Answer and explanation

Correct answer: Solid rocky part

The governing concept is the lithosphere, the rigid outer part of Earth. It includes the crust and the uppermost, relatively solid portion of the mantle. Because these materials are made mainly of rocks and minerals, the lithosphere is best described as Earth’s solid rocky part. Option A is therefore correct. Water vapour and clouds belong mainly to the atmosphere and cannot define the lithosphere. Bacteria are living organisms and may occur in soil or rocks, but they are not the lithosphere itself, so option D is far too narrow. The word “mainly” is important: the lithosphere is a physical, rocky layer, not a single substance or a biological component. Its plates move over the softer asthenosphere and influence earthquakes, volcanism, and mountain building.

Related tags

LithosphereRocky LayerEarth EvolutionEvolution Of The EarthThe Origin And Evolution Of The EarthGeographyClass 11 Mcq

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