Why does the EPA impose regulations on the transportation industry? (Select all that apply.) The EPA regulates indoor air quality, and vehicles impact indoor air quality. Diesel engines emit sulfur, and the EPA regulates how much sulfur should be in the air. Vehicles emit noises, and the EPA regulates the presence of noise in the environment. The cost of fuel for motor vehicles has a direct influence on local environmental quality.

sis. it's been a while since a read that and had that class so i can't answer for u

in the following paragraph, the fourth sentence the correct answer is: three personal subject pronouns

”she was embarrassed when she found that they had been put back on the shelves…”

a   subject pronoun is a personal pronoun. i, you, he, she it, we, they.  

in the sentence it can be observed she, used twice and they used once. is for this reason that is a three personal subject pronoun sentence.