Which of the following is not a metamorphic rock? by Sunday | Jun 13 | Geography WAEC | 0 comments A. slate B. marble C. loess D. gneiss Correct Answer: Option C – loess Users Also Read These:Which of the following is not an example of…Which of the following does not influence rock weathering?The formation of metamorphic rocks normally involves…A basin where rock layers have been folded and in…Gneiss is a metamorphic rock formed from?