Ecosystem Ques 81

81. Which one of the following is not a gaseous biogeochemical cycle in ecosystem? [2012]

(a) Sulphur cycle

(b) Phosphorus cycle

(c) Nitrogen cycle

(d) Carbon cycle

Show Answer

Answer : b

Hints & Solutions

(b) Phosphorus is mostly used as phosphate. Its reservoir pool is phosphate rocks while cycling pool is soil for terrestrial ecosystems and water for aquatic ecosystems.



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