The rock with the least carbon content is? by Sunday | Dec 31 | Geography JAMB | 0 comments A. coal B. sandstone C. marble D. lignite Correct Answer: Option B – sandstone Users Also Read These:In the carbon cycle, carbon dioxide in the air may…"Do you know any cardiologist, because my heart…Carbon (IV) oxide content of the atmosphere is least…To obtain pure carbon (II) oxide from its mixture…A hard; shiny and carbon-rich organic rock that…