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12.Ecosystem
normal
Out of the following biogeochemical cycles which one is gaseous?
$I.$ sulphur $II.$ Phosphorus
$III.$ nitrogen $IV.$ Carbon
Choose the correct option
A
$Only \;I$
B
$Only \;II$
C
$Only \;IV$
D
$III \;and\; IV$
Solution
Nitrogen and carbon cycle. In sedimentary cycle, the main reservoirs are soil and rocks, $e . g .$, sulphur cycle, phosphorus cycle, etc.
Standard 12
Biology
