Geography · Biogeography
Which of the following statements about the Biosphere is NOT correct?
- 1Its upper limit is determined by the availability of oxygen only.✓
- 2It consists of two major systems - terrestrial and aquatic.
- 3Biosphere consists of biotic, abiotic, and energy components.
- 4Average thickness of biosphere is about 30 km.
Correct answer
Its upper limit is determined by the availability of oxygen only.
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