Prolly C i would jus stick with your gut
Answer:
Bruhhhhhhhhhhhhhhh
Explanation:
It's hardness
Example 10 is diamond
and 1 is Talc
Answer:
I believe if she is explaining what she did and how she did it the audience will be informed of if she did controlled tests. It doesn't say if she explained the outcome.
Answer:
I am not sure show me a picture