Gneiss is a metamorphic rock formed from? by Sunday | Jul 4 | Agricultural Science WAEC | 0 comments A. sandstone B. slate C. shale D. clay E. granite Correct Answer: Option E – granite Users Also Read These:In which of the following ways are metamorphic rocks formed?A sedimentary rock formed only in seas and oceans in…An example of a rock formed by wood subjected to…An example of organically formed sedimentary rock is?Marble is a metamorphic rock formed from?