Part 1 of Essay
Social Studies 10H The automobile has become a very important part of today's society. It is a necessity to own or to have access to a car in order to keep up with all of the competition of the business world, and also one's social demands. Most people would not be able to travel around a country or the world without thi ....

Part 2 of Essay
.... are harmful to our environment. Automobiles run on gasoline, which is a mixture derived from petroleum. Gasoline contains hundreds of different hydrocarbons, or compounds containing the chemical elements carbon and hydrogen(Gasoline). When the gas is burned in the engine of the car, several byproducts result. These exhausts include hydrocarbons and oxides of three elements: Carbon, nitrogen, and sulfur(Emissions). Tiny amounts of poisonous trace elements such as lead, cadmium, and nickel also are present. E ....