8. igneous rock forms when
a. minerals crystallize from a solution.
b. sand grains are cemented together.
c. magma cools and solidifies.
d. minerals grains in a rock recrystallize

9. A___ is a common structure found in metamorphic.
a. ripple marks c. sill
b. fold d. layer

10. The process in which sediment is removed from its source and transported is called
a. deposition c. weathering
b. erosion. d. uplift

11. mafic rock are
a. light colored rocks are rich in calcium, iron, and magnesium.
b. dark colored rocks are rich in aluminum, potassium, silica, and sodium.
c. light-colored rocks are rich in aluminum, potassium, silica, and sodium.
d. dark-colored rocks are rich in calcium, iron, and magnesium

SHORT ANSWER !!!

12. EXPLAIN how composition and texture are used by scientists to classify rocks. _________________________________

13. DESCIBE two ways a rock can undergo metamorphism. ________________________________________

14. EXPLAIN why some minerals only occur in metamorphic rocks. __________________________________________

15. DESCRIBE how each type of rock changes as it moves through the rock cycle. ___________________________________________

16. DESCRIBE two ways rocks were used by early humans and ancient civilizations. _________________________________

please answer these are due 2morrow morning please have them 100% right each please
thanks

Filed under: Potassium Rich

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