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The continuous alteration of Earth materials from one rock type to another is known as the


A) rock cycle.
B) hydrologic cycle.
C) tectonic cycle.
D) geologic cycle.

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The_______ drives the exogenic processes of the rock cycle.


A) hydrologic cycle
B) atmospheric circulation
C) tectonic cycle
D) rock cycle

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Describe the three basic rock types,how each are formed,and subcategories of each.

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Igneous: formed from solidifying and cry...

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The half-life of a radioactive isotope does not vary.

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The principle of isostasy refers to the vertical movement of Earthʹs crust in response to loading and unloading of weight,such as ice or sediment.

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The geological time scale uses equal intervals for dividing Earthʹs long history in a series of eons,eras,periods,and epochs.

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Earthʹs interior is layered because


A) materials became sorted based on electromagnetic fields as Earth solidified.
B) centrifugal force separated out the materials based on weight as Earth solidified.
C) materials became sorted based on density as Earth solidified.

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Earthʹs magnetic field has reversed nine times in the last four million years.

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The lowest features on Earthʹs surface coincide with


A) subduction zones.
B) divergent plate boundaries.
C) transform plate boundaries.
D) mid-oceanic ridges.

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If you were driving down the highway and saw mountains composed of layered strata,you could be confident that you were looking at


A) batholiths or laccoliths.
B) sedimentary rocks.
C) extrusive igneous rock.
D) a shield volcano.

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Describe the endogenic and exogenic processes involved in the geologic cycle.

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The major exogenic cycle is th...

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What type of rock is derived from the bits and pieces of former rocks?


A) Sedimentary
B) Hydrothermal
C) Igneous
D) Metamorphic

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Which of the following is INCORRECTLY matched?


A) Exogenic external processes
B) Radioactive decay heat exogenic energy source
C) Weathering exogenic breaking and dissolving the crust
D) Endogenic internal processes

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Rock assemblages from the east coast in South America and west coast of Africa provide supporting evidence to the theory of plate tectonics.

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Which of the following is an example of an intrusive,igneous rock formation?


A) Lava flow
B) Volcano
C) Pluton
D) Dome

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Areas of crustal collision and subduction occur along


A) transform boundaries.
B) divergent boundaries.
C) convergent boundaries.
D) areas of seafloor spreading.

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Earthʹs crust is roughly made up of


A) strong,unbroken material.
B) a brittle material that does not move.
C) mantle and core material.
D) at least 14 plates capable of movement.

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