Human-made air pollution comes from many things. Most air pollution made by humans today is because of transportation. Cars, for instance, make about 60% of the human-made air pollution. The gases inside car exhaust, like nitrogen oxide, make smog and acid rain.
The average price of a new car in America tops $33,000, according to car-buying site Kelley Blue Book, so buying a vehicle is a major financial move. While many consumers focus on sticker price or the monthly payment, that overlooks many other costs.
The average cost of a new car in 1993 was $12,750. Some other  interesting facts from 1993, the cost for a gallon of gas was only  $1.16 on average, and the average movie ti â¦ cket cost $4.14! Answered. In Cars & Vehicles.