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Vocabulary List #8
Canadian Geography and Environment
Term | Definition |
---|---|
Canadian Shield | The largest region in Canada, the Canadian Shield covers almost half of the country. This rocky area in central Canada around Hudson Bay, is one of the world’s richest deposits of minerals. |
Tundra | area with limited vegetation, such as moss and shrubs; climate with cool summers and bitterly cold, dry winters |
Permafrost | permanently frozen soil |
Transportation corridor | paths that make transportation easier, such as the St. Lawrence Seaway. |
Transportation barrier | geographic features that prevent or slow down transportation. |
Lock | a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. |
St. Lawrence Seaway | is a system of locks, canals and channels in Canada and the United States that permit ocean-going vessels use to travel from the Atlantic Ocean to the Great Lakes of North America. |
Ecosystem | group of plants and animals that depend on each other and their environment for survival |
Mixing zone | an area where warm and cool water combine and stir nutrients from the ocean floor; fish feed on these nutrients |
Pollution | waste that makes the air, soil or water less clean |
Acid rain | clouds or rain containing sulfur dioxide, carbon dioxide, and nitrogen oxide that cause problems in the environment. |
Extraction | the act or process of pulling out or taking forcibly |
Clear Cutting | cut down and remove every tree from an area |
Phosphorus | chemical used in fertilizer, pesticides, toothpaste, detergents and explosives; it can cause algal blooms in lakes |
Algal Bloom | a rapid increase in algae that can cause the eventual death of plant and animal life in the area of the bloom |
Slag | leftover rock from the smelting (refining) process |