I think its Granite and Phyllite
Answer:
<em>Rhine-Ruhr is a highly industrialized, densely populated region of Western Germany that includes the major cities of Bonn, Cologne, Dusseldorf, Dortmund and Essen. With a population of about 10 million, the region is one of the biggest metropolitan areas in Europe.</em>
Explanation:
HOPE IT HELPS
Hello!! the answer is a limestone!!
happy holidays