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The Precambrian Eon encompasses what percentage of Earth's total history?


A) 0) 04 percent
B) 5) 2 percent
C) 12.4 percent
D) 87.6 percent
E) 94.3 percent

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

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Which of the following is an endogenic process?


A) weathering
B) stream deposition
C) volcanism
D) glacial erosion
E) sediment deposition

F) A) and E)
G) D) and E)

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What type of rock forms from the solidification of molten material?


A) sedimentary
B) metamorphic
C) igneous
D) hydrothermal

E) None of the above
F) All of the above

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The history of life on Earth is chronicled in which type of rock?


A) igneous
B) metamorphic
C) sedimentary

D) A) and C)
E) B) and C)

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The heat that drives the tectonic cycle is derived from


A) nuclear fusion.
B) radioactive decay.
C) chemical reactions.
D) sunlight.
E) nuclear fission.

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

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A gneiss is a type of ________ rock that has ________ in it.


A) sedimentary layers
B) sedimentary no layers
C) metamorphic layers (mineral bands)
D) metamorphic no layers in it
E) igneous layers (mineral bands)

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

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Any rock,either igneous or sedimentary,may be transformed into a metamorphic rock,by going through profound physical and/or chemical changes under increased pressure and temperature.

A) True
B) False

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The magma which fuels and produces the volcanic activity around the Pacific Ring of Fire,is derived from the


A) lava extruded from rift zones,which are developing along the Pacific Rim.
B) rise of material that was melted in subduction zones along the Pacific margins.
C) rise of magma from hot spots,such as those which formed the Hawaiian Islands.
D) rise of magma along transform faults.
E) mantle plumes.

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

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According to currently accepted scientific theories,Earth is never affected by catastrophes.

A) True
B) False

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Pangaea is currently dated at


A) 4) 6 billion years ago.
B) about half the timespan of Earth's existence.
C) 225 to 200 million years ago.
D) 65 million years ago.
E) the beginning of the Holocene.

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

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The Hawaiian Islands were formed as a result of


A) a rising plume of magma from the mantle.
B) an oceanic-oceanic plate collision.
C) a continental-oceanic plate collision.
D) activity along a mid-ocean ridge.
E) subduction of the Pacific Plate.

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

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Marble is a familiar example of which type of rock?


A) intrusive igneous
B) metamorphic
C) sedimentary
D) extrusive igneous
E) fractured

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

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The process of isostatic adjustment is most closely associated with which of the following?


A) lithospheric plate collisions
B) volcanic activity
C) sea-floor spreading
D) buoyancy
E) subduction

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

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Which of the following are located along the midocean ridges?


A) volcanoes
B) outcrops of granite
C) old oceanic sediments
D) evaporite deposits
E) coral reefs

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

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Which of the following is true of the metamorphism process?


A) it can be accomplished by cementation.
B) it can be accomplished by pressure.
C) it involves melting of the original rock.
D) it can be accomplished by volcanic processes.
E) it involves evaporation of water.

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

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Which of the following is true of geothermal energy?


A) it could be used everywhere.
B) it is in use only in Iceland.
C) loss of aquifer pressure and groundwater drawdown can increase production over time.
D) it can be used to produce both heat and electricity.
E) it is created by the advection of heat through rocks.

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

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The most seismically active region of Canada


A) is centred on Ottawa in Ontario.
B) is located in the Eastern Townships of Quebec.
C) encompasses all of the Atlantic Region.
D) is at the geographic centre of North America.
E) is located where the Juan de Fuca Plate is subducting beneath the North American continent on the Pacific coast.

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

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North magnetic pole


A) is the located where the meridians of longitude converge.
B) is the location of the point on the globe where the magnetic field is directed downward.
C) has been in one fixed location over the entire evolution of Earth.
D) moves in concert with the south magnetic pole.
E) is also known as true north.

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

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Which layer of Earth is composed primarily of peridotite,a rock which is high in olivine,iron,magnesium,and silicates?


A) inner core
B) outer core
C) crust
D) upper mantle
E) aesthenosphere

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

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Silt and clay are likely to be deposited in a beach environment.

A) True
B) False

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