Question

question 8 (5 points)
listen
whats metamorphism?
a) the process by which new minerals form from existing minerals as a result of elevated temperature or pressure
b) the process by which new minerals form from existing minerals that become unstable at earths surface
c) the process by which new minerals form as a result of precipitation from an aqueous solution
d) the process by which new minerals form as a result of biological processes in living organisms
question 9 (5 points)
listen
which phrase does not describe a mineral?
a) naturally occurring
b) crystal structure

Explanation:

Metamorphism is the transformation of existing rock - types (minerals) in a solid - state due to high temperature, pressure, or chemically active fluids. Option A correctly defines it. Minerals are naturally occurring, inorganic substances with a definite chemical composition and a characteristic crystal structure. All options in Question 9 describe properties of minerals.

Answer:

Question 8: A. The process by which new minerals form from existing minerals as a result of elevated temperature or pressure
Question 9: None of the above (as all options describe minerals)