Base your answer to the question on the diagram below, which represents a rock composed of cemented pebbles and sand Which change would most likely occur if this rock became buried deep within Earth's crust and was subjected to intense heat and pressure, but did not melt?
1
The density of the pebbles and sand would decrease.
2
The rock would become a plutonic rock composed mostly of quartz
3
The rock would become more felsic with a higher concentration of magnesium
4
The pebbles would become distorted and the sand would be recrystallized.