Which of the following is the correct
sequence of ecosystems in the order of
decreasing productivity?

1)Oceans, lakes, grasslands, mangroves

2)Mangroves, oceans, grasslands, lakes

3)Mangroves, grasslands, lakes, oceans

4)Oceans, mangroves, lakes, grasslands

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    Mangroves, grasslands, lakes, oceans

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  • Exam: CSAT IAS 2013

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