plz answer this jk free points hurry this is my only one for today ill do one tomorrow thx

Have a nice day!

thanks

Explanation:

well thank you my good sir

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

d. making up measurements to record.