(a) Grasslands
(b) Coral reefs
(c) Mangroves
(d) Equatorial rain forest
[CBSE AIPMT 1997]
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Which of the following ecosystem has the highest gross primary productivity?
Which of the following ecosystem has the highest gross primary productivity?
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Correct Option (b) Reason : The Gross primary productivity of an ecosystem is the total amount of organic matter produced by it's producers, i.e. autotrophs. Coral reefs have maximum and deserts have lowest productivity.