Question

difference between fog and smog?

Answer 1

mist and fog is water droplet in air and only difference is how far you can see
and smog ia what happened when pollution cause low lying

Answer 2

Mist and fog are caused by water droplets in the air, and the only difference is how far you can see. Haze is the reflection of sunlight off air pollution, while smog is what happens when pollution causes low-lying ozone.