A hard, shiny and carbon-rich organic rock that burns smokelessly is?

Assessment: JAMB UTME - Geography - 2009 Subject: Geography

Question 1 Report

A hard, shiny and carbon-rich organic rock that burns smokelessly is?
Answer Details
The answer is anthracite. Anthracite is a hard, shiny, and carbon-rich organic rock that burns smokelessly. It is a type of coal that is highly metamorphosed and has a high carbon content, making it an excellent fuel source for heating and cooking. It is also used in the production of electricity and other industrial processes. Peat is a precursor to coal that is not yet fully carbonized, while rhyolite and marble are types of igneous and metamorphic rocks, respectively, that do not have the properties of coal.

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