Huron, Ontario, and Erie. They are considered to be the largest group of lakes containing

fresh-water in the world. They make up the most important inland waterway in North

America. These Great Lakes were the main route used by early explorers and settlers of

The Northwest Territory. Later on, because the transportation offered was so cheap by

The Great Lakes, it turned this territory into one of the most important industrial areas

in the United States. Of the five lakes, Lake Michigan lies entirely with the U.S. while

the other four lakes are shared between Canada and the States.

Despite its long history, there have been many factor

worsened. In 1920, PCB's were used and in 1940, DDT was introduced. These

somehow entered into the drinking water supply. As time passed, the pollution situation

from the Lakes, as well as plants dying because of the water they depended on were

contaminated. In 1950, Lake Erie was noticed as the first lake suffering from lake wide

As urbanization and industrialization began to occur, water quality was

Great Lakes. But at the time, it was guessed that if the Great Lakes were

Some common words found in the essay are:
Lakes Contaminated, Lake Erie, Canada Despite, Northwest Territory, Ontario Erie, Canada United, Presently Lakes, America Lakes, Lake Michigan, effects pollution, forms pollution, pollution lakes, Lakes Lakes, lakes lakes,
Approximate Word count = 501
Approximate Pages = 2 (250 words per page double spaced)