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:An example of mechanically formed sedimentary rock is?Which of the following rock types is formed through…Marble is a metamorphic rock formed from?In which of the following ways are metamorphic rocks formed?An example of a rock formed by wood subjected to…