The soil horizon rich in humus is called: MCQ with Answer and Explanation

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The soil horizon rich in humus is called:

A. B Horizon

B. C Horizon

C. R Horizon

D. A Horizon

Answer: Option D

Solution (By JKSSB Mock Tests)

The A Horizon or topsoil contains the highest concentration of organic matter and nutrients.

This question belongs to: Geography GK Soils of India

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Question #1

Which soil is most common in river valleys of North India?

A. Alluvial soil

B. Laterite soil

C. Red soil

D. Black soil

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Correct Answer: Option A

Explanation:
Alluvial soil dominates river valleys like the Ganga, Yamuna, and Brahmaputra plains.

This question belongs to: Geography GK Soils of India

Question #2

What is the main source of nitrogen replenishment in organic farming?

A. Plastic Waste

B. Compost and Green Manure

C. Sand

D. Concrete Dust

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Correct Answer: Option B

Explanation:
Organic farming relies on compost, green manure, and biofertilizers to supply nitrogen.

This question belongs to: Geography GK Soils of India

Question #3

Which soil is most commonly associated with paddy cultivation in eastern India?

A. Mountain Soil

B. Saline Soil

C. Alluvial Soil

D. Desert Soil

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Correct Answer: Option C

Explanation:
Eastern India's fertile alluvial soils are highly suitable for rice cultivation.

This question belongs to: Geography GK Soils of India

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