12th Class Biology Ecosystem

  • question_answer 28)
      The reservoir for the gaseous type of bio-geochemical cycle exists in (a) stratosphere               (b) atmosphere                (c) ionosphere                  (d) lithosphere

    Answer:

                      (b) There are two stores of nutrients reserve pooland cycling pool. The reservoir for gaseous type of nutrient and biogeochemical cycle (nitrogen and carbon cycle) exists in atmosphere while earth crust is the reservoir for sedimentry cycle. Whereas stratosphere ionosphere and lithosphere are the parts of atmosphere.


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