The biosphere extends upto a height of from the ocean floor.
A
10 km
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B
20 km
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C
30 km
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D
40 km
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Solution
The correct option is B 20 km The biosphere is the zone where the atmosphere, hydrosphere, and lithosphere interact. It contains all the living creatures on the Earth. It extends upto a height of 20 km from the ocean floor to the troposphere.