Rock Cycle Review St 3 Ob 1-2 Question Preview (ID: 14541)
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Which assumption must scientists make about the rock cycle?
a) igneous rocks cannot change into other rocks because they are already changed.
b) rocks are formed in Earth’s center and rise to the crust to form the soil.
c) igneous rocks form in volcanoes and then erode to form metamorphic rocks.
d) rocks in ancient times weathered, eroded and deposited as they do today.
Which of the following processes are required in the formation of all metamorphic rock?
a) heating the rock until it melts
b) erosion of weathered materials
c) deposition and mineral cementing
d) Heat and pressure but not melting
Which of the following processes are required in the formation of all igneous rock?
a) Complete melting
b) Erosion
c) Deposition
d) Compaction
Which of the following processes are required in the formation of all sedimentary rock?
a) Complete melting and recrystallization
b) Heat and pressure
c) Compaction and cementation
d) Melting and cooling
Which of the following describes the energy source for melting most rock inside Earth?
a) the sun
b) volcanos
c) heat inside Earth
d) erosion
A sample of rock has visible small, round pebbles cemented together with smaller-grained material. Which type of rock is the sample?
a) igneous
b) sedimentary
c) metamorphic
d) Not enough information to answer.
A sample of rock has no visible foliations (bands) or crystals but does contain gas bubbles. Which type of rock is the sample?
a) igneous
b) sedimentary
c) metamorphic
d) Not enough information to answer.
A sample of rock has visible foliations (bands) of alternating dark and light colored crystals. Which type of rock is the sample?
a) igneous
b) sedimentary
c) metamorphic
d) Not enough information to answer.
Which of the following is true concerning the relationship between rocks on the rock cycle?
a) The rocks form in order going clockwise on the rock cycle.
b) The rocks form in order going counter-clockwise on the rock cycle.
c) Any rock can change into any other rock on the rock cycle
d) The rocks are related to the each other by the minerals that they contain.
Which processes and events occur to make sedimentary rock?
a) Burial, heat & pressure, partial melting, recrystallization
b) Burial, heat & pressure, partial melting, recrystallization
c) Weathering, erosion, deposition, cementation and compaction
d) Weathering, erosion, deposition, burial, heat & pressure
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