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(WGU C649) GEOS 2101 - Geology I Physical - FA Review

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(WGU C649) GEOS 2101 - Geology I Physical - FA Review (WGU C649) GEOS 2101 - Geology I Physical - FA Review (WGU C649) GEOS 2101 - Geology I Physical - FA Review (WGU C649) GEOS 2101 - Geology I Physical - FA Review

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  • August 22, 2024
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  • 2024/2025
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EmilioOchieng
C649 GEOS 2101




Geology I Physical




FA REVIEW




©WGU 2024/2025

,1. Multiple Choice: What type of rock is typically formed by the
cooling and solidification of lava or magma?
a) Sedimentary
b) Metamorphic
c) Igneous
d) Clastic
Correct Answer: c) Igneous
Rationale: Igneous rocks are formed from the solidification of
molten rock material.


2. Fill-in-the-Blank: __________ is the process by which sediment
is removed from its source, often by water, wind, or ice.
Correct Answer: Erosion
Rationale: Erosion is the geological process of removal and
transportation of materials by natural agents.


3. True/False: The Mohorovičić discontinuity separates the crust
from the upper mantle.
Correct Answer: True
Rationale: The Mohorovičić discontinuity, or Moho, is the
boundary between the Earth's crust and the mantle.

©WGU 2024/2025

, 4. Multiple Response: Which of the following are mechanical
weathering processes? (Select all that apply)
a) Hydrolysis
b) Frost wedging
c) Exfoliation
d) Oxidation
Correct Answers: b) Frost wedging, c) Exfoliation
Rationale: Frost wedging occurs when water freezes in cracks of
rocks and exfoliation is the peeling of rock layers.


5. Multiple Choice: Which mineral is commonly used in
radiometric dating to determine the age of rocks?
a) Quartz
b) Feldspar
c) Zircon
d) Mica
Correct Answer: c) Zircon
Rationale: Zircon contains trace amounts of uranium, which can
be used for radiometric dating.



©WGU 2024/2025

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