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153. Which of the following metals contribute to to biomagnifications problem in the ecosystem?

October 4, 2025 by Admin

A. Mercury

B. Chromium

C. (4) Copper

D. (4) Lead

✅ The correct answer is option A.

Categories Physical Geography, UPSC Tags Physical Geography MCQs, UPSC MCQs

152. What is the percentage coverage of Tropical Forest on earth’s landmass?

154. Highly specialized form of agriculture in which crops like coffee, tea and rubber are cultivated refer to –

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