Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning? 1. Smelting units 2. Pens and pencils 3. Paints 4. Hair oils and cosmetics Select the correct answer using the codes given below:
A1, 2 and 3 only
B1 and 3 only
C2 and 4 only
D1, 2, 3 and 4
Answer & Solution
Correct answer: B. 1 and 3 only
UPSC CSE Prelims 2012 (GS-I, Set A), Q.15. Answer key: B (coaching consensus; UPSC did not publish an official 2012 AK separately on upsc.gov.in).
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