Which soil horizon is the parent rock layer? MCQ with Answer and Explanation

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Which soil horizon is the parent rock layer?

A. C-horizon

B. A-horizon

C. O-horizon

D. B-horizon

Answer: Option A

Solution (By JKSSB Mock Tests)

C-horizon consists of weathered parent material beneath the soil layers.

This question belongs to: Geography GK Soils of India

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Practice More Soils of India Questions

Question #1

Which soil is formed by river deposits and renewed annually?

A. Laterite

B. Bhangar

C. Regur

D. Khadar

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Correct Answer: Option D

Explanation:
Khadar is the newer alluvial soil deposited during annual floods.

This question belongs to: Geography GK Soils of India

Question #2

Which soil horizon is known as the zone of accumulation?

A. O Horizon

B. R Horizon

C. B Horizon

D. A Horizon

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Correct Answer: Option C

Explanation:
The B Horizon accumulates minerals leached from the A Horizon and is called the zone of accumulation.

This question belongs to: Geography GK Soils of India

Question #3

Alluvial soils in India are mainly formed by which process?

A. River deposition

B. Volcanic activity

C. Wind erosion

D. Glacial activity

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Correct Answer: Option A

Explanation:
Alluvial soils are formed by the deposition of sediments carried by rivers, especially in the Indo-Gangetic plains.

This question belongs to: Geography GK Soils of India

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