Sulfur dioxide _____.
A)creates a reddish-brown haze in the sky
B)is a secondary air pollutant
C)has an irritating odor and is colorless
D)is relatively harmless to the environment
A)creates a reddish-brown haze in the sky
B)is a secondary air pollutant
C)has an irritating odor and is colorless
D)is relatively harmless to the environment