HELP ASAP 1.
Which of these rocks forms when magma cools and hardens?
A. coal
B. shale
C. granite
D. sandstone

2.
Which of these rocks forms from compacted and cemented sediments?
A shale
B. basalt
3.
C. gneiss
D. granite
I
What
type
of rock forms when heat and pressure inside Earth chemically change existing rock?
A. igneous rock
B. sedimentary rock
C. metamorphic rock

4.
How would you identify a glossy, black, microscopically fine-textured rock that has no layering?
A. marble
C. obsidian
B. granite
D. limestone

5. Which of the following is true of a silicate mineral?
A. It contains only carbon
B. It must contain a metal.
C. It contains silicon bonded to oxygen
D. It can only be found in metamorphic rock