How would a chemical sedimentary rock form?
A) from the precipitation of minerals
B) particles of preexisting rocks liberate by physical weathering, then cement together
C) a metamorphic rock breaks down
D) a sedimentary rock is intensely heated
Question 2
An igneous rock is fine-grained. What kind of rock is it, and how did it form?
A) a volcanic rock; it cooled quickly on the surface of the earth
B) a plutonic rock; it cooled quickly beneath the earth's surface
C) a hydrothermal rock; it cooled underwater
D) a chemical rock; it cooled by the mixing of certain chemicals