Part one of term paper
As awareness for pollution increases, other forms of pollution are defined. Almost everyone knows about toxic waste and carbon dioxide pollution, but not many people have heard of . has been on the increase since the evolution of the automobile. With more pressure on government agencies to keep the highway clear and safe, an increase in ...

Part two of term paper
... Salt is used as the principal deicer because it is the most available and cost-effective deicer. Rock salt is preferred because it is cheap and effective. It costs 20 dollars a ton where as an alternative like calcium magnesium cost around 700 dollars a ton. Some 10 million tons of deicing salt is used each year in the U.S. and about 3 million in Canada. Salt is used to keep snow and ice from bonding to the pavement and to allow snowplows to remove. When salt is applied to ice and snow it crea ...