Q.
A. CO which is major pollutant reactivity from the combustion of fuels in automobiles plays a major role in photochemical smog
B. Classification has an oxidizing character while the photochemical smog is reducing in the character
C. Photochemical smog occur in the day time where as the classical smog occurs in the early morning hours.
D. During the formation of smog the level ozone in the atmosphere goes down
E. None of the above
Correct choice: D
Explanation: