The formation of metamorphic rocks normally involves the change of other rocks through? by Sunday | Jun 14 | Geography WAEC | 0 comments A. solution B. heat C. folding D. tension Correct Answer: Option B – heat Users Also Read These:Which of the following rocks is not metamorphic?Igneous rocks are different from sedimentary rocks by their?All the following rocks are metamorphic except?If the change in free energy of a system is -899…In which of the following ways are metamorphic rocks formed?