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
South America has three physical regions: coastal plains, river basins, and mountains and highlands. Each of these regions contains unique biomes, with the coastal plains containing desert biomes, the river basins containing tropical rain forest and grassland biomes, and the mountains containing alpine biomes.