Transcript -- Open cast mines
Earth's physical resources: extracting coal and oil - for iPad/Mac/PC
English - June 23, 2009 02:09 - 19.9 KB application/pdfCourses Education carboniferous energy burn fossil ash charcoal organic fuel power coalfield Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
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Transcript -- A fault is an underground hazard. By drilling a series boreholes, miners start the safe development of an open cast mine.