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Continental Shelf
gently sloping outer edge of a continent that extends below the surface of the ocean toa maximum depth of about 200 metres
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Banks
Shallow areas of a Continental shelf
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Inshore Fishing
commercial fishing that takes place within a few kilometres of shoreline. small fishing boats go out to sea and return to shore each day
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Offshore fishing
ocean fishery using boats longer than 25m. The boats stay at sea several days befroe returning to shore with their catch
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sustained yeild managment
use of renewable resource at a rate that allows the resource to renew itself. For example, the number of fish caught shouldnt be greater than the number of fishing maturity
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Growing season
The number of days when the mean daily temperature exceeds 5 degrees. Farmers only grow crops that will have time to ripen within the growing season of their area
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Fertilizer
substance such as manner or a chemical put on agriculture land to produce a greater crop yeild
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Herbicides
chemical designed to kill unwanted plants(weeds). If used improperly, a herbicide can be a polutant
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Pesticide
chemicals designed to kill harmful plants (herbicide) and harmful insects (insectiside)
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Land capability
ability of land to be used for a certain purpose. For example land capability for agriculture depends on soil quality, drainage slope and climate
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Mechanization
process whereby machinery takes over humans or animals
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Metallic mineral
mineral that yeilds a metal when processed, for example gold uranium and silver
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non metallic mineral
mineral that yeilds non metals when processed. Salt, potash
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Fossil feuls
any mineral that can be burned to produce energy. Coal, natural gas, oil
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Industrial minerals
non-metallic minerals such as salt or asbestos used by industries and manufacturing
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Sustained yeild forest management
use of forest resources that allow the forests to renew themselves
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softwood
wood from coniferous(needle) trees
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Hardwood
wood from broad leaved trees (oak and maple) they are used for furniture, boats, sports equipment etc.
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stewardship
the management of resouces in a careful and substaincial way
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What are the three categories of fsih and explain
- groundfish- bottom feeders
- pelagic fish- open water feeders
- Shellfish- shells
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What are the four factors influencing Agriculture
- topography
- biology
- Climate
- Soil
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Why is land both a renewable and non renewable?
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Where are the three areas that fruit is grown
- Niagara fruit belt
- Okanagan Valley of BC
- Annapolis Valley of Nova Scotia
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Why were substicides made?
to help those in the 1930s during the depression whos crops were ruined by the a drought
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What are the three ways of logging
- clear cut
- Selective Cut
- Shelterwood
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Which areas suffer most from acid precip, why?
- maple syrup producing forests
- because the fumes from Eastern Canada and eastern united states
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What are the three types of mining and what is each used for?
- Strip- oilsands, coal and other minerals
- Open pit- used to mine minerals that are near surface but may also extend deep into ground
- Underground- extract mineral ores from deep into earth
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