Question

this pet dog belong to NIKUNJ . this dog is​

Answer 1

Unlike fog, you can actually smell the smog and know the difference! While fog is whiter in colour, the air we see around us has tones of grey, which the scientists term as smog and not fog. While fog eventually dips down, smog persists in the air and transfers smoke-like particles which we end up ingesting.

I didn't understand your question