(Q).
Q: What describes the way light reflects off of the surface of the mineral? Choices: - intensity - density - hardness - luster A:
(A).
luster

(Q).
Q: What orifice in the body is particularly helpful in both digestion and respiration? Choices: - nostril - nose - anus - mouth A:
(A).
mouth

(Q).
Q: What is the term for the number of waves that pass a fixed point in a given amount of time? Choices: - wave speed - wave distance - wave velocity - wave frequency A:
(A).
wave frequency