Why do we need mines?.

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Presentation transcript:

Why do we need mines?

Add to table of contents: Mining activity Pg. 76 Reclamation Pg. 77

Review: What is mining? Mining is extracting ore from the ground An ore is a natural material with a high concentration of economically valuable minerals that can be mined for a profit

Subsurface Mining http://www.uky.edu/KGS/coal/images/minmethd.gif

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Reclamation Pg. 77 So why can mining be bad? If we can’t grow a product, it has to be mined! So why can mining be bad? Mining can destroy or disturb habitats. Creates hazards for living things. Waste products can pollute water systems.

Reclamation Pg. 77 Reclamation - When a mine is no longer being used, the land should be returned to its original state or better. Surface Mining and Reclamation Act of 1975 made reclamation a law.

Reclamation Mine Albert, Quebec, before and after reclamation. Government of Quebec On average, reclamation costs the mining companies $20,000 an acre. So mines try to keep waste products contained so they are easily returned to the ground after mining. http://www.abandoned-mines.org/home-e.htm

Cookie Mining!