1. Why has quarrying become a major environmental concern?

2. The process of taking out minerals from rocks buried under the surface of the earth is named as

3. Give an example of shafts.

4. What is the process in which minerals lying near the surface are dug?

5. Name the process in which deep wells are bored to take out petroleum and natural gas.

6. Gold is an example of minerals.

7. Which continent is the largest producer of iron?

8. Which one of the following countries in Europe has the largest deposits of iron?

9. Which is one of the deepest gold mine of the world?

10. From which mineral is silicon obtained?