The first step in surface coal mining is: A. to use heavy equipment to take core samples B. to test and see if quarrying would be more effective C. to remove and set aside the soil that covers the area to be mined D. to make cuts in the coal for easier removal

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The first step in surface coal mining is: to remove and set aside the soil that covers the area to be mined.

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Asked 9/18/2012 12:12:46 PM

Updated 1/9/2015 11:52:17 AM

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emdjay23

The first step in surface coal mining is: to remove and set aside the soil that covers the area to be mined.

Added 1/9/2015 11:52:17 AM

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Confirmed by andrewpallarca [1/9/2015 11:53:25 AM]

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Which of the following describes soil and temperature in an ecosystem? A. selection factors B. biotic factors C. abiotic factors D. unnecessary factors

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Abiotic factors describes soil and temperature in an ecosystem.

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