1. Which is the largest group of minerals? What is the common feature of all minerals in this group? 2. Which are more common in Earth’s crust and mantle— silicates or nonsilicates? 3. A rock deep in...

1. Which is the largest group of minerals? What is the common feature of all minerals in this group?

2. Which are more common in Earth’s crust and mantle— silicates or nonsilicates?

3. A rock deep in Earth has a temperature higher than the melting point it has at Earth’s surface. Why can this buried rock remain in the solid state even though its temperature is very high?