Practice Exam 3 Questions and Answers
Graded A+
1) Which of the following is incorrectly matched?
A) endogenic — internal processes
B) exogenic — external processes
C) radioactive decay heat — exogenic energy source
D) weathering — exogenic breaking and dissolving the crust - Correct answer-C
2) When geologists conclude that the Grand Canyon sequence of rocks was formed
through hundreds of millions of years of deposition, mountain building, and
erosion, they are basing this conclusion on the principle of ________ which states
that ________.
A) catastrophism; most rock formations were created as a result of supernatural
processes
B) catastrophism; a single, large flood was responsible for the creation of the rock
sequence
,C) uniformitarianism; all geologic processes take immense amounts of time to
occur and always occur at the same rate
D) uniformitarianism; the geologic processes that operated in the past are the same
as those that operate today, and they occurred in accordance with the same laws of
nature that are operating today - Correct answer-D
3) Earth's interior is layered because...
A) centrifugal force separated out the materials based on weight as the Earth
solidified.
B) materials became sorted based on density as the Earth solidified.
C) materials became sorted based on electromagnetic fields as the Earth solidified.
- Correct answer-B
4) Which of the following gives the correct sequence of layers in Earth, from the
surface to the center?
A) crust, inner core, mantle, outer core
B) inner core, outer core, mantle, crust
C) mantle, crust, inner core, outer core
D) crust, mantle, outer core, inner core - Correct answer-D
, 5) The density of material below the Moho is ________ that above it.
A) greater than
B) less than
C) the same as - Correct answer-A
6) On average, the thickness of oceanic crust is ________ that of continental crust.
A) greater than
B) less than
C) the same as - Correct answer-B
7) A rock transformed from any other rock through extreme heat and or pressure is
referred to as
A) sedimentary.
B) metamorphic.
C) igneous.
D) ancient. - Correct answer-B
8) The continuous alteration of Earth materials from one rock type to another is
known as the
A) geologic cycle.
Graded A+
1) Which of the following is incorrectly matched?
A) endogenic — internal processes
B) exogenic — external processes
C) radioactive decay heat — exogenic energy source
D) weathering — exogenic breaking and dissolving the crust - Correct answer-C
2) When geologists conclude that the Grand Canyon sequence of rocks was formed
through hundreds of millions of years of deposition, mountain building, and
erosion, they are basing this conclusion on the principle of ________ which states
that ________.
A) catastrophism; most rock formations were created as a result of supernatural
processes
B) catastrophism; a single, large flood was responsible for the creation of the rock
sequence
,C) uniformitarianism; all geologic processes take immense amounts of time to
occur and always occur at the same rate
D) uniformitarianism; the geologic processes that operated in the past are the same
as those that operate today, and they occurred in accordance with the same laws of
nature that are operating today - Correct answer-D
3) Earth's interior is layered because...
A) centrifugal force separated out the materials based on weight as the Earth
solidified.
B) materials became sorted based on density as the Earth solidified.
C) materials became sorted based on electromagnetic fields as the Earth solidified.
- Correct answer-B
4) Which of the following gives the correct sequence of layers in Earth, from the
surface to the center?
A) crust, inner core, mantle, outer core
B) inner core, outer core, mantle, crust
C) mantle, crust, inner core, outer core
D) crust, mantle, outer core, inner core - Correct answer-D
, 5) The density of material below the Moho is ________ that above it.
A) greater than
B) less than
C) the same as - Correct answer-A
6) On average, the thickness of oceanic crust is ________ that of continental crust.
A) greater than
B) less than
C) the same as - Correct answer-B
7) A rock transformed from any other rock through extreme heat and or pressure is
referred to as
A) sedimentary.
B) metamorphic.
C) igneous.
D) ancient. - Correct answer-B
8) The continuous alteration of Earth materials from one rock type to another is
known as the
A) geologic cycle.
