A) earths hydrosphere, lithosphere and atmosphere
B) a combination of all ecosystems of the earths environment
C) the entire inhabited part of the earth and its atmosphere, including living and non-living matter
D) all of the above
Correct Answer: D
Solution :
: Biosphere is the part of the earth and its atmosphere that is inhabited by living organisms. The Earths surface and the top layer of the hydrosphere (water layer) have the greatest density of living organisms. The geosphere, or nonliving world, is made up of the lithosphere (solid earth), hydrosphere, and atmosphere.
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