When coal or oil are burned, some part of it is completely combusted, forming CO2; another part is partially combusted, forming CO (carbon monoxide); and some remains unburned and is released as soot. Along with sulfur dioxide, these are the main components of _________________.
A) ozone
B) particulates
C) industrial smog
D) photochemical smog
E) CFCs

Question

Quizplus · Accepted Answer

Industrial smog is primarily composed of sulfur dioxide, carbon monoxide, carbon dioxide, and particulate matter such as soot, which are by-products of burning coal or oil.

When Coal or Oil Are Burned, Some Part of It