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| Description: Zinc, lead, nickel, tin, gold, diamonds, phosphate, salt, coal Deepest mines extend nearly 4 km underground The most dangerous form of mining Dynamite blasts, collapsed tunnels, toxic fumes and coal dust Mine-related accidents involving loss of life are rare in Canada Picture Stats: Views: 268 Filesize: 135.79kB Height: 815 Width: 781 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=36005 |