SSC
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the crust, continents, and ocean basins
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all the land and water on Earth’s surface
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molten rock and toxic gases
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a mix of nitrogen, carbon dioxide, and oxygen
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Detailed explanation-1: -The lithosphere is the solid, outer part of Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below.
Detailed explanation-2: -The lithosphere is the rigid outer layer of the Earth and is composed of rocks and minerals. It is made up of the entire crust as well as the upper part of the mantle. This rigid layer of solid rock “floats” on top of the asthenosphere, a layer of plastic-like rock in the upper part of the mantle.
Detailed explanation-3: -Ocean crust is part of Earth’s lithosphere that underlies ocean basins. Oceanic crust is primarily composed of mafic rocks (chiefly basalt and other rocks rich in iron and magnesium).
Detailed explanation-4: -The lithosphere includes the crust (whether continental or oceanic) and the uppermost part of the upper mantle. It thins to a few kilometres at ocean spreading centres, thickens to about 100-150 km under the older parts of ocean basins, and is up to 250-300 km thick under continental shield areas.