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Action of Winds - SS1 Geography Past Questions and Answers - page 1

1

What is the primary process of wind erosion that involves particles colliding with each other?

A

Abrasion

B

Attrition

C

Deflation

correct option: b
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2

Which landform is characterized by its crescent shape with a gentle windward slope and a steeper leeward slope?

A

Rock pedestal

B

Barchan

C

Yardang

correct option: b
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3

What do you call the elongated sand dunes that align parallel to the prevailing wind direction?

A

Seif dunes

B

Yardangs

C

Zeugens

correct option: a
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4

Which wind-eroded landform is characterized by a raised rock perched on top, resulting from the erosion of its base?

A

Loess

B

Yardang

C

Rock pedestal

correct option: c
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5

Parabolic dunes are typically found in which type of environment?

A

Coastal areas

B

Deserts

C

Mountain ranges

correct option: a
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6

What process of wind erosion leads to the removal of fine-grained materials like sand, silt, and clay from the Earth's surface?

A

Abrasion

B

Attrition

C

Deflation

correct option: c
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7

Which type of dunes often has a complex, multi-crested shape with several arms or ridges radiating from a central point?

A

Barchans

B

Star dunes

C

Parabolic dunes

correct option: b
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8

What type of dunes have the open end pointing into the wind and often form in regions with vegetation?

A

Barchans

B

Star dunes

C

Parabolic dunes

correct option: c
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9

What is the term for the deposit of fine, wind-blown silt and clay particles that often covers vast areas and is fertile for agriculture?

A

Yardang

B

Loess

C

Nebkha

correct option: b
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10

Which feature plays a crucial role in stabilizing desert soils and preventing further wind erosion?

A

Star dunes

B

Nebkhas

C

Seif dunes

correct option: c
Users' Answers & Comments
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