alleryStart learning →Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?
AOceans, lakes, grasslands, mangroves
BMangroves, oceans, grasslands, lakes
CMangroves, grasslands, lakes, oceans
DOceans, mangroves, lakes, grasslands
Answer & Solution
Correct answer: C. Mangroves, grasslands, lakes, oceans
UPSC CSE Prelims 2013 (GS-I, Set A), Q.23. Official answer key: C.
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