Detailed Instructions: You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.
Problem:Shales can be changed into schist by way of moderate heat or shearing pressure accompanying regional (tectonic) deformation

If you are asking for specific minerals, it can be quartz, micas, amphiboles; often garnets, kyanite, or other aluminosilicates
Solution:
Which Igneous rock can be changed into schist?