Which process converts plant residues into dark organic matter? MCQ with Answer and Explanation

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Which process converts plant residues into dark organic matter?

A. Calcification

B. Leaching

C. Humification

D. Salinization

Answer: Option C

Solution (By JKExamLibrary)

Humification is the formation of humus from decomposed organic residues.

This question belongs to: Geography GK Soils of India

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Question #1 Report Error

Which soil is highly porous but infertile?

A. Desert soil

B. Peaty soil

C. Black soil

D. Alluvial soil

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Correct Answer: Option A

Explanation:
Desert soil is porous but lacks nutrients and moisture.

This question belongs to: Geography GK Soils of India

Question #2 Report Error

What is the primary source of humus in soil?

A. Decayed Plants and Animals

B. Weathered Rocks

C. Volcanic Ash

D. River Sediments

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Correct Answer: Option A

Explanation:
Humus originates from decomposed organic matter such as plants and animals.

This question belongs to: Geography GK Soils of India

Question #3 Report Error

Which soil is formed by volcanic activity?

A. Laterite soil

B. Alluvial soil

C. Red soil

D. Black soil

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Correct Answer: Option D

Explanation:
Black soil is formed from basaltic lava flows.

This question belongs to: Geography GK Soils of India

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