Fog is formed by water vapor condensing in the air.
But suddenly a fog, a haze, began to form.
A haze is formed when water vapor condenses in the air.
What is formed when water vapor condenses in the air?
[a] NaCl
[b] a wave
[c] ice
[d] rain
[e] clear skies
[f] sweat
[g] haze
[h] rocks