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:Increasing adrenalin content of the blood would be…To obtain pure carbon (II) oxide from its mixture…Analysis of a hydrocarbon shows that it contains…A fresh soil sample of mass 180 g had a mass of 120…In the carbon cycle, carbon dioxide in the air may…