Correct Answer: smoke and fog

Solution : The correct answer is smoke and fog

Smog is a mixture of smoke and fog. Smog is classified into two types: photochemical smog and classic smog. Smog can contain a number of dangerous pollutants, such as ground-level ozone, nitrogen dioxide, sulphur dioxide, and particle matter. These contaminants have the potential to irritate the lungs, throat, and eyes. They can also exacerbate pre-existing medical issues including asthma and heart disease.