For example, the granite in Figure 2 is made up of the minerals quartz<span>, </span>feldspar<span>, </span>hornblende<span>, and </span>mica<span>. About 20 minerals make up most of the rocks of Earth's crust. These minerals are known as </span>rock-forming minerals<span>. Appendix B at the back of this book lists some of the most common rock forming minerals.</span>
In a normal pile of sedimentary layers, the bottom layer would be oldest whereas the top would be the youngest.
Sedimentary rocks are formed when layers of sediment from the Earth are being deposited. That means that the bottom most layer would probably be also the first sediments that fell in the area, thus making the top layer the newest sediments.
The mammoth cave is located in the Greater Appalachian Mountains.
Hope it helps!
Im goning to guess china since it is the bigest so thats what i think is the answer hope its right
