ashleejanae ashleejanae

28-04-2017
Biology

contestada

Depending upon its composition, each type of coal burns differently. The "older" the coal, the harder the coal, and the greater percentage of _______ present. A) carbohydrates B) carbon C) oxygen D) water

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jinx2001 jinx2001

28-04-2017

The answer you are looking for is B) Carbon. Hope this helps.

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calvinheinle calvinheinle

16-04-2019

It is Carbon. I had this on USAtest prep

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