A gas commonly found in smog is ozone. Correct answer: A
Smog generally occurs in the lower part of the atmosphere is composed mainly of tropospheric ozone (O3), primary particulate matter such as pollen and dust; and secondary particulate matter such as sulphur oxides, volatile organic compounds, nitrogen oxides (NOx) and ammonia gas.
Because it looks nasty to them so they don’t wanna risk trying it and not liking it so they just throw it away.
Answer:
leg tapping is one. And another is fitgiting with fingers and hands.