UPSC CSE Prelims 2020 Q48 — Environment PYQ

2020Q48·Environment·Pollution

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:

UPSC CSE Prelims 2020 Q48 — Environment PYQ with Answer

UPSC CSE Prelims 2020 Q48 — Environment PYQ with Answer