Which of the following statements is incorrect regarding the phosphorus cycle?

  • A
    Many animals also need large quantities of phosphorus to make shells,bones,and teeth.
  • B
    Rocks are the natural reservoir of phosphorus.
  • C
    Phosphorus is not released into the atmosphere during respiration,unlike the carbon cycle.
  • D
    Atmospheric inputs of phosphorus through rainfall are much larger than carbon inputs.

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Which of the following is $NOT$ a gaseous biogeochemical cycle in an ecosystem?

Match Column-$I$ with Column-$II$. Select the option with the correct combination.
$1$. Standing state$p$. Mass of living material at a given time
$2$. Pioneer species$q$. Amount of nutrients in the soil at a given time
$3$. Detritivores$r$. Species that invade a bare area
$4$. Standing crop$s$. Breakdown detritus into smaller particles

Identify $Z$ in the given figure representing the carbon cycle.

In a typical terrestrial ecosystem,which of the following statements regarding population size is correct?

Which of the following statements are correct?
$(a)$ Net primary productivity is available biomass for consumption to heterotrophs.
$(b)$ Secondary productivity is defined as the rate of formation of new organic matter by heterotrophs.
$(c)$ The annual net primary productivity of the ocean is greater than that of land.
$(d)$ Warm and moist environment favours decomposition.

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