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Online Quiz
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1
The silicate tetrahedron is composed of
A)4 oxygen and 2 silicon atoms
B)4 silicon and 1 oxygen atoms
C)4 silicon and 2 oxygen atoms
D)4 oxygen and 1 silicon atoms
2
The vast majority of rock-forming minerals are
A)oxides
B)carbonates
C)sulfides
D)silicates
3
Which mineral is not a silicate?
A)calcite
B)quartz
C)olivine
D)feldspar
4
Which mineral group is the most abundant in Earth’s crust?
A)carbonates
B)sulfides
C)olivines
D)feldspars
5
Which is not part of the definition of a mineral?
A)naturally occurring
B)aggregate of elements
C)definite chemical composition
D)orderly internal arrangement
6
Pure ice is a mineral while pure liquid water is not. Why?
A)liquid water does not have an orderly internal arrangement of atoms
B)liquid water does not occur naturally
C)liquid water does not have a definite chemical composition
D)all of the above
7
When an atom donates or gives away an electron to form a cation, the cation can then bond chemically, and the bond is
A)an ionic bond
B)a metallic bond
C)a covalent bond
D)a shared oxygen linkage
8
Atomic number is the
A)number of protons in an atom
B)sum of the number of protons plus the number of neutrons in an atom
C)number of neutrons in an isotope
D)sum of the number of protons plus the number of electrons in an atom
9
The process of lithification produces
A)igneous rocks
B)soil
C)sedimentary rocks
D)metamorphic rocks
10
Rock salt and limestone are examples of
A)metamorphic rocks
B)chemical sedimentary rocks
C)fragmental sedimentary rocks
D)igneous rocks
11
Which rock has a clastic texture?
A)gneiss
B)basalt
C)granite
D)conglomerate
12
What distinguishes slate from schist?
A)clastic versus crystalline texture
B)nonfoliated versus foliated crystalline texture
C)grain size
D)mineralogic composition
13
Contact metamorphic rocks
A)occur throughout hundreds of square miles
B)are formed next to igneous intrusions
C)are usually foliated
D)are formed along faults
14
Examples of foliated metamorphic rocks are
A)marble and quartzite
B)shale and andesite
C)limestone and marble
D)slate and schist
15
The three rock groups, igneous, metamorphic, and sedimentary, are distinguished from each other on the basis of
A)mineral content
B)principle of superposition
C)mode of origin
D)all of the above





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