1.Pick up the correct statementa.CO\mathrm{CO}CO, which is a major pollutant from automobile combustion, plays a major role in photochemical smogb.Classical smog has an oxidizing character while photochemical smog is reducing in characterc.Photochemical smog occurs in daytime whereas classical smog occurs in early morning hoursd.During formation of smog the level of ozone in the atmosphere goes downLogin to continueOnly logged in users canattempt or see the solution.
