How can smog be reduced?
Burning fuel Flying airplanes air cools evaporation exercise vaporization Driving more cars Carpooling
A B C D E F G H
Ozone from cars creates smog.
Carpooling decreases the amount of smog in the air.
How can smog be reduced? (A) Burning fuel (B) Flying airplanes (C) air cools (D) evaporation (E) exercise (F) vaporization (G) Driving more cars (H) Carpooling