Which soil is rich in iron oxide? MCQ with Answer and Explanation

Which soil is rich in iron oxide?

A. Red soil

B. Black soil

C. Desert soil

D. Alluvial soil

Answer: Option A

Red soil gets its color from iron oxide content.

This question belongs to: Geography GK Soils of India

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Question #1 Report Error

Laterite soil is formed under which climatic condition?

A. Hot and dry

B. Hot and wet

C. Cold and dry

D. Cold and wet

Correct Answer: Option B

Explanation:
Laterite soil forms in hot and wet tropical climates with heavy rainfall and intense leaching.

This question belongs to: Geography GK Soils of India

Question #2 Report Error

Which of the following is a biological factor of soil formation?

A. Climate

B. Microorganisms

C. Parent Rock

D. Relief

Correct Answer: Option B

Explanation:
Microorganisms contribute to decomposition and nutrient cycling in soil formation.

This question belongs to: Geography GK Soils of India

Question #3 Report Error

The old alluvium of the Northern Plains generally contains:

A. Kankar

B. Humus

C. Peat

D. Laterite

Correct Answer: Option A

Explanation:
Old alluvial soils (Bangar) contain kankar nodules made of calcium carbonate.

This question belongs to: Geography GK Soils of India