UPSC PRELIMS · GEOGRAPHY · WETLAND ECOSYSTEM SERVICES
“If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys.” Which one of the following functions of wetlands best reflects the above statement?
Take a breath. Choose one. Press A–D on your keyboard if you like.
EXPLANATION
Wetland plants and sediments can absorb or retain excess nutrients and pollutants, analogous to a filtering function.
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