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M: +2.00/-0.67

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

(a) Oceans, lakes, grasslands, mangroves

(b) Mangroves, oceans, grasslands, lakes

(c) Mangroves, grasslands, lakes, oceans

(d) Oceans, mangroves, lakes, grasslands

[Ecology and Environment 2011-16-(1)]
A
B
C
D

EXPLANATION

Mangroves, grasslands, lakes, oceans is the correct sequence of ecosystems in...
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