The brown color of smog comes from light reflecting off of which substance in the atmosphere?
A)carbon dioxide
B)sulfur compounds
C)organic molecules
D)mercury
E)nitric oxide

Question

The brown color of smog comes from light reflecting off of which substance in the atmosphere?  
A)carbon dioxide
B)sulfur compounds
C)organic molecules
D)mercury
E)nitric oxide

Quizplus · Accepted Answer

The brown color of smog is primarily due to nitrogen dioxide, a type of nitric oxide, which absorbs light and gives the smog its characteristic brownish hue.

The Brown Color of Smog Comes from Light Reflecting Off