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What is Gross primary productivity (GPP)...

What is Gross primary productivity (GPP)?

A

It refers to the environmental factors.

B

Number of plants in an ecosystem.

C

It is the rate of production of organic matter during photosynthesis.

D

Solar energy exposed to plants in an ecosystem.

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Gross primary productivity is-

    A
    Rate at which organic molecuels are formed in an autotroph.
    B
    Rate at which organic molecuels are used up by an autotroph
    C
    Storage of organic molecuels in the body of an autotroph.
    D
    Rate at which organic molecules are transferred to next higher trophic level.

  • Gross primary productivity is the

    A
    rate at which organic molecules are formed in a heterotroph
    B
    rate of consuming organic molecules by an autotroph
    C
    rate of storage of organic compounds in an autotroph
    D
    rate of formation of organic molecules by an autotroph

  • Which ecosystem has the highest gross primary productivity ?

    A
    Rain forests
    B
    Coral reefs
    C
    Mangroves
    D
    Grasslands

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    Assertion: Net primary productivity is gross primary productivity minus respiration. Reason :Secondary productivity is produced by hetrotrophs.

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