Miscellaneous · Ecology and Environment · UPSC Civil Service
MCQ (Single Correct Answer)
1
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?
UPSC Civil Service Prelims Paper I 2025 (General Studies)
2
Consider the following:
- Pyroclastic debris
- Ash and dust
- Nitrogen compounds
- Sulphur compounds
How many of the above are products of volcanic eruptions?
UPSC Civil Service Prelims Paper I 2024 (General Studies)
3
‘Triclosan’, considered harmful when exposed to high levels for a long time, is most likely present in which of the following?
UPSC Civil Service Prelims Paper I 2021 (General Studies)