On Earth, portion of upper mantle and crust are together known as:
A
biosphere
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B
lithosphere
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C
hydrosphere
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D
ecosphere
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Solution
The correct option is B lithosphere Earth's lithosphere includes the crust and the uppermost mantle, which constitute the hard and rigid outer layer of the Earth. The lithosphere is subdivided into tectonic plates. Further there are two types of lithosphere mainly as oceanic and continental lithosphere.