Please can someone help me im struggling asap ill mark brainlist

1. A

2. C

3. A

4. D

5. B

Explanation:

bobby is cool

Explanation:

area of focus

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.