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Sandstone is usually metamorphosed into ________.


A) limestone
B) quartzite
C) magma
D) slate
E) chalcedony

F) A) and C)
G) A) and E)

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The most widespread oxides are those that combine oxygen and ________.


A) water
B) calcite
C) native elements
D) silver
E) iron

F) All of the above
G) A) and E)

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The relief we see today is best thought of as ________.


A) unexplainable
B) not very diverse
C) everlasting in terms of Earth history
D) temporary
E) a product of internal, rather than external, processes

F) A) and B)
G) B) and E)

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Life appeared on Earth ________.


A) as one-celled organisms and remained so over most of Earth's history
B) very early in Earth's history
C) after most of Earth's history was already over
D) the day before yesterday
E) within the last one million years

F) A) and B)
G) C) and E)

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The banding characteristic of metamorphic rocks is ________.


A) stratification
B) relief
C) foliation
D) magma
E) uniformitarianism

F) B) and D)
G) B) and C)

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Our understanding of the crust and upper mantle has fundamentally improved in the last few decades.

A) True
B) False

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Uniformitarianism is another term for the theory of massive crustal deformation.

A) True
B) False

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The deepest drill core into the Earth's crust is approximately ________ kilometers deep.


A) 0.5
B) 12
C) 31
D) 360
E) 6,702

F) A) and D)
G) A) and B)

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Which of the following associations is generally TRUE?


A) External processes: creative and uplifting
B) Internal processes: wearing-down and destructive
C) External processes: poorly understood
D) Internal processes: well understood
E) External processes: decrease local relief

F) A) and B)
G) C) and D)

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The most common sedimentary rock is ________.


A) basalt
B) limestone
C) sandstone
D) marble
E) shale

F) None of the above
G) A) and E)

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The outer and inner cores together make up approximately ________ of the mass of the Earth.


A) 1/30,000
B) 1/3,000
C) 1/300
D) 1/30
E) 1/3

F) All of the above
G) C) and E)

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The asthenosphere is the portion of Earth's interior between the lithosphere and lower mantle.

A) True
B) False

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The lithosphere is sometimes defined as the ________.


A) crust and upper mantle
B) upper and lower mantle
C) lower mantle and outer core
D) outer and inner core
E) asthenosphere and mesosphere

F) C) and D)
G) None of the above

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Thinking about geologic time, why is it necessary to accept the reality of an Earth that is very old?

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The geomorphic processes are m...

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The Earth's crust is a layer of the lithosphere about 1,000 kilometers thick.

A) True
B) False

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From the surface to the center of the Earth, name the major parts of Earth's interior structure and give a characteristic of each.

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For instance: Start with the c...

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The Age of Dinosaurs persisted for some ________ years.


A) 160
B) 160 thousand
C) 160 million
D) 1.60 billion
E) 160 billion

F) A) and B)
G) A) and C)

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In terms of Earth history, life appeared ________.


A) almost directly after the beginning
B) after 99% of the time had elapsed
C) before the first true "landscapes"
D) before the Grand Canyon began
E) after the continents started to drift

F) A) and B)
G) C) and D)

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The ________ is NOT a portion of Earth's interior.


A) outer core
B) asthenosphere
C) Moho
D) lithosphere
E) magnetosphere

F) A) and B)
G) All of the above

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Limestone is composed primarily of ________.


A) igneous material
B) calcite
C) tufa
D) cations
E) silt

F) B) and C)
G) B) and D)

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