Which of the following rocks is not formed from pre-existing rocks? by Sunday | Jun 6 | Agricultural Science WAEC | 0 comments A. limestone B. granite C. shale D. marble Correct Answer: Option B B. granite Users Also Read These:A converging lens and a screen are placed 20 cm and…They are formed in layers and derived from old rocks…The formation of metamorphic rocks normally involves…'They are formed from the accumulation of materials…Which of the following groups of rocks is formed as…