A hard; shiny and carbon-rich organic rock that burns smokelessly is? by Sunday | Dec 25 | Geography JAMB | 0 comments A. peat B. rhyolite C. marble D. anthracite Correct Answer: Option D – anthracite Users Also Read These:A basin where rock layers have been folded and in…Sulphur burns in air to form?A printer that burns the print image onto the…Burns and scalds are examples of accidents caused by?The energy evolved when magnesium burns in air is in…