Chapter 13 Earth as a System: Energy, Matter, and Life - Part 5
What distinguishes the phosphorus cycle fundamentally from the carbon, nitrogen, and water cycles in terms of biogeochem...
Type: MCQ • Marks: 1
What distinguishes the phosphorus cycle fundamentally from the carbon, nitrogen, and water cycles in terms of biogeochemical pathways?
Options
A. Phosphorus only cycles through aquatic organisms
B. The phosphorus cycle lacks a significant atmospheric gaseous phase, cycling primarily through lithospheric weathering, sedimentary deposition, and biological uptake
C. Phosphorus exists exclusively as a toxic gas
D. Phosphorus cycle is driven entirely by solar UV radiation
Explanation
Phosphorus does not form stable atmospheric volatile compounds, confining its cycle to terrestrial, aquatic, and lithospheric mineral reserves.
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Class 9thScience (MCQ)
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