History, 31.01.2020 14:49 bayeck

What is “clean coal”?
a.
coal that is mined underground with minimum impact on the surface environment
b.
coal that is burned with technology that cuts the amount of soot and sulfur dioxide emitted
c.
coal mined in certain regions of the country from veins that are free from impurities
d.
coal that is first washed and purified before being shipped for use in power plants

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What is “clean coal”?
a.
coal that is mined underground with minimum impact on the sur...