GK
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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rivers
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oceans
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ocean basins
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lakes
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Detailed explanation-1: -Lithosphere only includes the crust and uppermost part of the mantle. Oceanic crust is thicker about 50 to 100 km and continental lithosphere is about 150 km thicker. Hence, the correct answer is option D.
Detailed explanation-2: -Detailed Solution. Crust and upper mantle constitute the parts of the lithosphere.
Detailed explanation-3: -Oceanic lithosphere consists mainly of mafic crust and ultramafic mantle (peridotite) and is denser than continental lithosphere. Young oceanic lithosphere, found at mid-ocean ridges, is no thicker than the crust, but oceanic lithosphere thickens as it ages and moves away from the mid-ocean ridge.
Detailed explanation-4: -The oceanic lithosphere is composed primarily of mantle peridotites and magmatic rocks that are the result of the melting of these mantle rocks: gabbro, diabase and basalt.