The silicates are the largest mineral group because silicon and oxygen are (a) the hardest elements on Earth’s surface. (b) the two most abundant elements on Earth’s surface. (c) found in the common...

The silicates are the largest mineral group because silicon and oxygen are

(a) the hardest elements on Earth’s surface.

(b) the two most abundant elements on Earth’s surface.

(c) found in the common mineral quartz.

What physical change in metamorphic rock signals the end of metamorphism?

(a) freezing

(b) melting

(c) crystallization

(d)evaporation