Environmentaleasy · Past Paper
Which of the following fuels is the cleanest in terms of air pollution?
ACoal
BDiesel
CNatural Gas (CNG)
DFirewood
✓ Correct Answer: C — Natural Gas (CNG)
CNG (Compressed Natural Gas) produces much lower amounts of harmful emissions compared to petrol, diesel, or coal.
Share this question
More from Environmental
- Which of the following is a benefit of biodiversity?
- Which layer of the atmosphere is closest to the Earth's surface?
- What is the normal lapse rate (temperature decrease per km rise) in the troposphere?
- What happens to the concentration of Oxygen as we go higher into the atmosphere?
- In Nepal, the 'Buffer Zone' refers to: