Which of the following is not a way of reducing air pollution?
- Siting factories and power stations away from residential areas
- Building tall factory chimneys
- Passing waste gases through filters and absorbers
- Using lead-free petrol in cars
-
Recycling tins, cans and bottles
The correct answer is: E
Explanation
All the options contribute to the reduction of air pollution except option E which does not in any way reduce air pollution.