GyanGram
ATTEMPT · ENVIRONMENT · PRELIMS 2022
"If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys…
Read the full question, pick an option, then see whether you were right. The answer is not shown until you attempt.
Your attempt
Choose an option before the answer.
"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?
Pick an option to check yourself. The answer stays hidden until you attempt.
• Correct Answer: D
• Wetlands act as kidneys through phytoremediation; aquatic plants absorb heavy metals and excess nutrients (N, P).
• This filtration prevents eutrophication downstream, unlike options describing water circulation or sedimentation.
Keep going
Same year. Same subject. More attempts.
Keep attempting in GyanGram.
Filter by year or subject, attempt previous-year questions, and connect each miss back to a visual deck.