Environmentalmedium · Past Paper
Which of the following is a primary source of indoor air pollution?
ATraffic exhaust
BRadon gas and burning biomass
CIndustrial smoke
DPollen from outside
✓ Correct Answer: B — Radon gas and burning biomass
Indoor air can be polluted by radon gas from soil or smoke from traditional cookstoves using wood or dung.
Share this question
More from Environmental
- What is the main chemical process behind 'Acid Rain' eroding limestone statues?
- What is the primary way that 'Dark Snow' accelerates glacier melting?
- Which chemical is primarily responsible for the 'Ital-itai' disease?
- The term 'Smog' is a combination of:
- Which gas has the highest percentage in the Earth's atmosphere?