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History of Coal – Central Asian science

By |2018-09-27T06:43:01+00:00June 1st, 2017|Central Asia, Science|

History of coal: These are lumps of coal What is coal made of? Most of the coal on Earth formed during the Carboniferous Period about 350 million years ago, when giant ferns growing in wetlands were flooded and buried under a blanket of mud before they could rot. What happened in the Carboniferous [...]