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Class 12BiologyEcosystemProductivity
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The annual net primary productivity of the whole biosphere is approximately . . . . . . of dry weight of organic matter.

GSEB 2020All GSEB
  • A
    $170$ billion tons
  • B
    $150$ billion tons
  • C
    $190$ billion tons
  • D
    $210$ billion tons
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Class 12 Questions

Class 12

Biology Questions

Chapter

Ecosystem

Subtopic

Productivity

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GSEB 2020 PaperAll GSEB years →

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