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Question
The annual net primary productivity of the whole biosphere is approximately.
The annual net primary productivity of the whole biosphere is approximately.
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Solution
The correct option is B 170 billion tons
The annual net primary productivity of the whole biosphere is approximately 170 billion tons. Out of this, oceans contribute 55 billion tons.
The annual net primary productivity of the whole biosphere is approximately 170 billion tons. Out of this, oceans contribute 55 billion tons.
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