Question

What is not a form of indoor pollution?

Responses

ammonia

ammonia

ozone

ozone

radon

radon

tobacco

Answer 1

Among the options you've provided, **ozone** is typically considered not a form of indoor pollution. While indoor ozone can occur, it is primarily a concern as an outdoor pollutant, particularly in urban areas where it is formed by chemical reactions in the atmosphere. The other substances listed—ammonia, radon, and tobacco—are all common indoor pollutants.