Rocks: Materials of the Solid Earth
Multiple Choice
Name ____________________________________
1 The great majority of rocks exposed at Earth's surface are of which type?
A) metamorphic rocks
B) igneous rocks
C) sedimentary rocks
2. Molten material found inside Earth is called ____________.
A)
B)
C)
D)
E)
plasma
mineraloid
lava
rock fluid
magma
3. The surface process that slowly disintegrates and decomposes rock is called _______.
A)
B)
C)
D)
E)
metamorphism
weathering
exfoliation
erosion
crystallization
4 . The single most characteristic feature of sedimentary rocks are ____________.
A)
B)
C)
D)
E)
crystals
cleavage planes
strata
ripple marks
mud cracks
5 . Why can two igneous rocks have the same minerals but different names?
A)
B)
C)
D)
E)
names of igneous rocks are arbitrary
the rocks may be of different sizes
they may have been found in different places
they may have different colors
they may have different textures
6. Igneous rocks that contain the last minerals to crystallize from magma and consist
mainly of feldspars and quartz are said to have a ____________ composition.
A)
B)
C)
D)
E)
gneissic
basaltic
lithic
granitic
metamorphic
7. Which one of the following is NOT a primary element found in magma?
A) carbon
B) aluminum
C) silicon
D) oxygen
E) iron