Here are the answers for each question based on the provided responses:
Question 1:
A) Two unknown mineral samples, A and B, are rubbed against each other. Mineral A scratches mineral B. What can you infer about the minerals?
Answer: Mineral A is harder than mineral B.
Question 2:
A) Light bounces off of a mineral sample. What can you say about the mineral?
Answer: The mineral is reflective.
Question 3:
A) What properties of silica sand make it useful in hydraulic fracturing?
Answer: It can withstand great pressure.
Question 4:
A) Which of the following statements about mining booms is true?
Answer: Property values tend to increase in the short term.
Question 5:
A) How have phosphate minerals most affected human activity?
Answer: Using phosphate minerals in fertilizer allowed humans to grow more crops.
Feel free to ask if you have any further questions!