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WGU Integrated Physical Sciences (MTC1) Exam - Topic 2 Question 9 Discussion

Which process is responsible for the formation of the sand dune pictured above?
C) Deposition by wind
A) Deposition by flowing water
B) Physical weathering
D) Chemical weathering

WGU Integrated Physical Sciences (MTC1) Exam - Topic 2 Question 9 Discussion

Actual exam question for WGU's WGU Integrated Physical Sciences (MTC1) exam
Question #: 9
Topic #: 2
[All WGU Integrated Physical Sciences (MTC1) Questions]

Which process is responsible for the formation of the sand dune pictured above?

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Suggested Answer: C

The formation of sand dunes, as shown in the picture, is primarily due to the process of deposition by wind. Wind transports sand and other fine particles over long distances, and when the wind speed decreases, these particles settle and accumulate, forming dunes. This process is particularly common in arid and semi-arid regions where vegetation is sparse, allowing the wind to move freely.


Integrated Physical Sciences documents on erosion and deposition.

Geological studies on desert environments and sand dune formation.

by Adelle at Apr 12, 2026, 09:20 AM

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Art
9 hours ago
I think it's C) Deposition by wind.
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Wilson
6 days ago
C makes the most sense, but I’m surprised it’s not more obvious!
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Maxima
11 days ago
Not so sure about that, looks more like wind to me.
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Craig
16 days ago
Wait, could it be A) Deposition by flowing water?
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Asha
2 months ago
I agree, wind is the main factor here.
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Novella
2 months ago
Definitely C) Deposition by wind!
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Lashonda
3 months ago
I keep mixing up weathering types. Is chemical weathering really not involved here?
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Gail
3 months ago
I practiced a similar question last week, and it was about how wind moves sand. I feel confident it's C.
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Denny
3 months ago
I'm not entirely sure, but I remember something about how water can shape landscapes too. Could it be A?
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Margret
3 months ago
I think the answer might be C, deposition by wind, since dunes are usually formed by wind action.
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