Which of the following are not the cause of pollution?
i) Automobile exhaust
ii) Decreasing use of pesticides
iii) Waste chemical products from factories
iv) Radioactive substances
Answer & explanation
Correct answer: option 3
The following are the causes of pollution :
i) Automobile exhaust
ii) Increasing use of pesticides
iii) Waste chemical products from factories
iv) Rise in atmospheric CO2
v) Radioactive substances