Multiple Choice
Which of the following is true of the biosphere?
A) It includes Earth's crust and a portion of the upper mantle.
B) It exists on other planets in the solar system.
C) It is not connected to the overlapping inorganic spheres.
D) It extends from the floor of the oceans to 8 km (5 mi. ) into the atmosphere.
E) It encompasses all of Earth's water,including that in the atmosphere and subsurface.
Correct Answer:

Verified
Correct Answer:
Verified
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