UPSC 2025 › Environment & Ecology › Pollution & Waste Management
3 questions · 2025 · answers as per the UPSC key
UPSC 2025 · Q44 · Environment & Ecology › Pollution & Waste Management · Save
Consider the following : I. Cigarette butts II. Eyeglass lenses III. Car tyres
How many of them contain plastic?
(a) Only one
(b) Only two
(c) All the three
(d) None
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Answer: (c) All the three
UPSC 2025 · Q50 · Environment & Ecology › Pollution & Waste Management · Save
Consider the following statements :
Statement I : Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediate contaminants from various industries.
Statement II : Activated carbon exhibits a large surface area and a strong potential for adsorbing heavy metals.
Statement III : Activated carbon can be easily synthesized from environmental wastes with high carbon content.
Which one of the following is correct in respect of the above statements?
(a) Both Statement II and Statement III are correct and both of them explain Statement I
(b) Both Statement II and Statement III are correct but only one of them explains Statement I
(c) Only one of the Statements II and III is correct and that explains Statement I
(d) Neither Statement II nor Statement III is correct
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Answer: (a) Both Statement II and Statement III are correct and both of them explain Statement I
UPSC 2025 · Q85 · Environment & Ecology › Pollution & Waste Management · Save
Artificial way of causing rainfall to reduce air pollution makes use of
(a) silver iodide and potassium iodide
(b) silver nitrate and potassium iodide
(c) silver iodide and potassium nitrate
(d) silver nitrate and potassium chloride
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Answer: (a) silver iodide and potassium iodide