The uppermost fertile layer of soil is known as: MCQ with Answer and Explanation

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The uppermost fertile layer of soil is known as:

A. Bedrock

B. Subsoil

C. Topsoil

D. Parent Rock

Answer: Option C

Solution (By JKSSB Mock Tests)

Topsoil contains humus and nutrients essential for plant growth.

This question belongs to: Geography GK Soils of India

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Practice More Soils of India Questions

Question #1

Which nutrient increases disease resistance in plants?

A. Potassium

B. Nitrogen

C. Hydrogen

D. Carbon

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Correct Answer: Option A

Explanation:
Potassium improves plant health and resistance to diseases.

This question belongs to: Geography GK Soils of India

Question #2

Which soil type generally supports the widest variety of crops in India?

A. Alluvial Soil

B. Saline Soil

C. Desert Soil

D. Peaty Soil

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Correct Answer: Option A

Explanation:
Alluvial soil is highly fertile and suitable for cereals, pulses, sugarcane, oilseeds, fruits, and vegetables.

This question belongs to: Geography GK Soils of India

Question #3

Yellow color in red and yellow soil is due to:

A. Humus

B. Hydrated Iron Oxides

C. Mica

D. Lime

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Correct Answer: Option B

Explanation:
Hydrated iron oxides impart a yellow color to these soils under moist conditions.

This question belongs to: Geography GK Soils of India

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