Exhaust fumes discharged from a smoky vehicle gradually become invisible as a result of? by Sunday | Aug 20 | Chemistry WAEC | 0 comments A. diffusion B. combustion C. absorption D. emission Correct Answer: Option A – diffusion Users Also Read These:lf the temperature of a small quantity of water in a…The sound from a bell in an enclosed jar gradually…When the pressure of the gas in a discharge tube is…The diagram above illustrates trapped air in a…A species whose populations has become so small that…