Answer:
The Answer is Ore
Explanation: I just took the test and here is the rest of the answers
1. Luster & Hardness
2. It must be crystalline and have a definite chemical composition.
3. Reflection
4. Silicates
5. Ore
6. Ore
7. The are was under water
8. The rock formed in a fast moving stream
9. Igneous
10. metamorphic