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:Rocks which have been formed by the cooling and…Which of the following rocks is formed from shale?In which of the following ways are metamorphic rocks formed?Igneous rocks are different from sedimentary rocks by their?Igneous rocks formed within the crust are called?