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NEETBotanyEcosystem

Read the following Assertion and Reason and choose the correct option. Assertion: The annual net primary productivity of the whole biosphere is approximately 150 billion tons of organic matter Reason: Despite occupying about 70 percent of the surface, the productivity of the ocean are only 45 billion tons.

Options

  1. ABoth Assertion and Reason are true and Reason is correct explanation of Assertion
  2. BBoth Assertion and Reason are true but the Reason is not the correct explanation of Assertion
  3. CAssertion is true but the Reason is false
  4. DBoth Assertion and Reason are false

Correct answer

D. Both Assertion and Reason are false

Step-by-step solution

The annual net primary productivity of the whole biosphere is approximately 170 billion tons of organic matter. Of this, despite occupying about 70 percent of the surface, the productivity of the oceans are only 55 billion tons.

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