Which factor controls the rate of decomposition of organic matter in soil? MCQ with Answer and Explanation

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Which factor controls the rate of decomposition of organic matter in soil?

A. Longitude

B. Trade

C. Temperature

D. Population

Answer: Option C

Solution (By JKSSB Mock Tests)

Temperature significantly affects microbial activity and decomposition rates.

This question belongs to: Geography GK Soils of India

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Question #1

Which state has significant laterite soil deposits used in brick-making?

A. Kerala

B. Haryana

C. Bihar

D. Punjab

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Correct Answer: Option A

Explanation:
Laterite soil is extensively used in brick-making in Kerala because it hardens upon exposure to air.

This question belongs to: Geography GK Soils of India

Question #2

Which soil horizon is the parent rock layer?

A. A-horizon

B. B-horizon

C. C-horizon

D. O-horizon

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Correct Answer: Option C

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

This question belongs to: Geography GK Soils of India

Question #3

Which type of weathering is most common in hot desert regions?

A. Chemical weathering

B. Biological weathering

C. Mechanical weathering

D. None

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Correct Answer: Option C

Explanation:
Mechanical weathering dominates in deserts due to temperature changes causing rock expansion and contraction.

This question belongs to: Geography GK Soils of India

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