Which of the following types of rock is a source of energy? By: Sunday|Published on: Jun 15|Categories: Geography WAEC| 0 comments A. sandstone B. coal C. granite D. graphite Correct Answer: Option B – coal Users Also Read These:In which of the following rock types is petroleum…Which of the following is the source of energy used…Which of the following rock types is coal associated with?The ultimate source of energy in the biosphere is?Considering all costs, the cheapest source of energy…SEE ALSO The separation of ancient Gondwana land into different land masses was caused mainly by?