Answer:
See below
Explanation:
From Nasa:
"Understanding the planets and small bodies that inhabit our solar system help scientists answer questions about its formation, how it reached its current diverse state, how life evolved on Earth and possibly elsewhere in the solar system, and what characteristics of the solar system lead to the origins of life."
Answer: 4
2x2 is 4 and that is the same thing as 2+2.
C. Ultraviolet light shining on the minerals will cause them to give off visible light.