Coal tar is classified as hazardous waste because it can pollute ground water. In brief: GREAT Question ! Asphalt made before the 1980's may contain coal tar products. Coal tar is classified as hazardous waste because it can pollute ground water. In brief: GREAT Question ! Asphalt made before the 1980's may contain coal tar products. Coal tar is classified as hazardous waste because it can pollute ground water.
You may or may not know that Canada is divided into 13 political regions. What you probably don't know is that there are 6 physical regions. They are the Atlantic Region, The Great Canadian Shield, The North, The Plains, The Cordillera and the Great Lakes St. Lawrence Region. Click any of the links below or on the appropriate section of the map to the right to view information on the corresponding region. The Atlantic Region Purple: The North. Green: The Plains. Orange: The Shield. Yellow: Great Lakes St. Lawrence. Pink: The Cordillera. Red: The Physical Regions of Canada; Pictures courtesy of www.get2knowcanada.ca
The Canadian Shield Canadian Shield Location of Region The Canadian Shield stretches from Alberta, going east, to Newfoundland and Labrador. From there it goes north to the Northwest Territories, Nunavut, and Greenland. The Canadian shield id Canada's largest physiographic region, it covers 4.8 million square kilometers and almost 2/3 of Ontario! Physical Features of the Canadian Shield. Mountains. The Canadian Shield mountains have very deep roots and they float on the denser mantle.