Which of the following are the reasons/factors for exposure to benzene pollution ?
- 1.Automobile exhaust
- 2.Tobacco smoke
- 3.Wood burning
- 4.Using varnished wooden furniture
- 5.Using products made of polyurethane
Select the correct answer using the code given below :
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Answer: A. 1, 2 and 3 only
Answer from the official UPSC key. A full explanation for this question is on its way.