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प्रश्न
Which of these are biodegradable pollutants?
(i) Pesticides
(ii) Mercuric salts
(iii) Sewage
(iv) Radioactive wastes
विकल्प
(i) and (ii)
(i) and (iii)
(i), (iii) and (iv)
(iii) only
MCQ
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उत्तर
(iii) only
Explanation:
Only sewage is biodegradable.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
