Type of Rocks

16. What is the name for the type of rock that is formed from the remains of dead plants and animals?
a) Limestone
b) Coal
c) Marble
d) Quartzite

17. What is the name for the type of rock that is composed of mostly quartz grains?
a) Limestone
b) Coal
c) Marble
d) Quartzite

18. What is the name for the type of rock that is made up of interlocking crystals of the same mineral?
a) Sedimentary rock
b) Metamorphic rock
c) Igneous rock
d) None of the above

19. What is the name for the type of rock that is composed of volcanic ash and debris that has been compacted and cemented together?
a) Tuff
b) Basalt
c) Granite
d) Gneiss

20. What is the name for the type of rock that is formed from solidified lava?
a) Tuff
b) Basalt
c) Granite
d) Gneiss