1. Which is the hardest mineral?

2. Which one of the following is a ferrous mineral?

3. The iron content in Hematite is:

4. Which one of the following is a famous Copper mine?

5. Lignite coal is found in:

6. Where is the largest solar plant located?

7. Which one of the following is a non-metallic mineral?

8. For which mineral, is Hazaribagh Plateau famous?

9. Where is the largest coalfield of India?

10. In which state is Kalpakkazn located?