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.
The answer is fats. You need protiens and water. Carbonhydrates are things like suger and starch. Carbonhydrates are your bodys main sorce of energy in a heathy balenced diet.