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D - SS - Units 7 & 8
Canada - Environment
Question | Answer |
---|---|
What are the environmental issues in Canada? | acid rain, pollution of the Great Lakes and extraction & use of natural resources |
What are the causes of acid rain in Canada? | polluted gases released into the air from emissions from cars, power plants that burn fossil fuels and factories that process minerals |
What are the effects of acid rain in Canada? | polluted farmland, dying trees, dead plants and animals in lakes, damage to buildings and statues and lower profits for industries |
What are the causes of pollution in the Great Lakes? | waste from industries, sewage treatment plants, and run-off (pesticides, fertilizers, oil, grease, salt from highways) |
What is an effect of the pollution in the Great Lakes? | it's killing the plants and fish |
What are the US and Canada doing to combat the pollution in the Great Lakes? | they area working to control industry, change to gas powered stations instead of coal-powered, and adding lime to help neutralize the effects of acid rain |
Why are the minerals from the Canadian Shield important? | they are valuable exports and power many industries |
What damage can extracting minerals cause the environment? | emissions cause acid rain, toxic waste gets into the ground and water and plants and animals lose their place to live |
What do rivers on the Canadian Shield produce? | hydroelectricity |
What is hydroelectricity? | electricity created by flowing water |
Hydroelectricity has caused problems because of what? | the creation of dams, reservoirs, and change in river flow |
What are results of the problems hydroelectricity has caused? | flooding, erosion, and animals lost their place to live and their source of food |
What is timber used for? | make wood and paper products |
What has clear-cutting (cutting down a lot of trees in the same area) caused? | flooding and erosion into rivers |
What is the government doing to try to help the effects of extracting timber in the Canadian Shield? | they are restoring damaged areas and setting aside land to be protected |
What are emissions? | the production and release of something |
What is an extraction? | the action of taking something out |