What is the annual net primary productivity of the whole biosphere?

What is the annual net primary productivity of the whole biosphere?
  1. 55 billion tons (dry weight)
  2. 170 billion tons (dry weight)
  3. 70 billion tons (dry weight)
  4. None of the above

Solution

The annual net primary productivity of the whole biosphere is approximately 170 billion tons (dry weight) of organic matter.

Asked in: NCERT

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