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Question
Which of the following is gaseous cycle?
(1) Sulphur cycle
(2) Carbon cycle
(3) Phosphorous cycle
(4) Nitrogen cycle
(1) Sulphur cycle
(2) Carbon cycle
(3) Phosphorous cycle
(4) Nitrogen cycle
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Solution
The correct option is C 2, 4
In gaseous cycles, the elements have a main reservoir in the gaseous phase, and the reservoir pool is the atmosphere or water. The compounds of these elements pass through the biotic components and enter a gaseous phase too before completing the cycle. Example: Nitrogen and carbon. Whereas sulphur and phosphorous reservoirs are mainly in the earth, soil and rocks and hence these cycles are primarily sedimentary. Sulphur also has a small gaseous phase as sulphur dioxide, but is not considered a gaseous cycle because the biggest sulphur reservoir is the ocean.
In gaseous cycles, the elements have a main reservoir in the gaseous phase, and the reservoir pool is the atmosphere or water. The compounds of these elements pass through the biotic components and enter a gaseous phase too before completing the cycle. Example: Nitrogen and carbon. Whereas sulphur and phosphorous reservoirs are mainly in the earth, soil and rocks and hence these cycles are primarily sedimentary. Sulphur also has a small gaseous phase as sulphur dioxide, but is not considered a gaseous cycle because the biggest sulphur reservoir is the ocean.
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