Soils of India MCQs with Answers and Explanations

Question #41

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Soil erosion caused by running water is most common in:

A. Coastal lagoons

B. Delta regions only

C. Flat plains

D. Steep slopes

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Correct Answer: Option D

Explanation:
Running water removes topsoil rapidly from steep slopes, causing severe erosion.

This question belongs to: Geography GK Soils of India

Question #42

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Which method helps prevent soil erosion on hill slopes?

A. Terrace Farming

B. Strip Mining

C. Deforestation

D. Overgrazing

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Correct Answer: Option A

Explanation:
Terrace farming reduces water runoff and prevents soil erosion on slopes.

This question belongs to: Geography GK Soils of India

Question #43

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The removal of top fertile soil by wind is called:

A. Wind Erosion

B. Leaching

C. Deposition

D. Laterization

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Correct Answer: Option A

Explanation:
Wind erosion is common in arid and semi-arid regions where loose soil is carried away by strong winds.

This question belongs to: Geography GK Soils of India

Question #44

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Which soil conservation method involves planting rows of trees?

A. Shelter Belts

B. Terracing

C. Mulching

D. Contour Ploughing

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Correct Answer: Option A

Explanation:
Shelter belts reduce wind velocity and protect soil from wind erosion.

This question belongs to: Geography GK Soils of India

Question #45

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Contour ploughing is mainly practiced to:

A. Promote mining

B. Increase salinity

C. Reduce soil erosion

D. Increase rainfall

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Correct Answer: Option C

Explanation:
Contour ploughing follows the natural contours of land and reduces runoff and erosion.

This question belongs to: Geography GK Soils of India

Question #46

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Which soil type is ideal for rice cultivation?

A. Mountain Soil

B. Desert Soil

C. Alluvial Soil

D. Saline Soil

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Correct Answer: Option C

Explanation:
Alluvial soil retains adequate moisture and nutrients required for rice cultivation.

This question belongs to: Geography GK Soils of India

Question #47

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Red and Yellow soils are mainly found in:

A. Thar Desert

B. Western Himalayas

C. Peninsular India

D. Punjab Plains

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Correct Answer: Option C

Explanation:
Red and yellow soils are widespread in peninsular India, especially in Tamil Nadu, Karnataka, and Andhra Pradesh.

This question belongs to: Geography GK Soils of India

Question #48

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Yellow color in red and yellow soil is due to:

A. Hydrated Iron Oxides

B. Mica

C. Lime

D. Humus

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Correct Answer: Option A

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

This question belongs to: Geography GK Soils of India

Question #49

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Which factor is NOT a soil-forming factor?

A. Climate

B. Relief

C. Currency

D. Parent Material

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Correct Answer: Option C

Explanation:
Climate, relief, parent material, organisms, and time are major soil-forming factors. Currency has no role.

This question belongs to: Geography GK Soils of India

Question #50

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The uppermost fertile layer of soil is known as:

A. Topsoil

B. Parent Rock

C. Bedrock

D. Subsoil

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Correct Answer: Option A

Explanation:
Topsoil contains humus and nutrients essential for plant growth.

This question belongs to: Geography GK Soils of India

Question #51

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Humus is formed by:

A. Volcanic activity

B. Rock weathering

C. Decomposition of organic matter

D. River deposition

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Correct Answer: Option C

Explanation:
Humus is the dark organic component formed from decomposed plant and animal remains.

This question belongs to: Geography GK Soils of India

Question #52

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Which soil is commonly used for growing cashew nuts?

A. Laterite Soil

B. Desert Soil

C. Black Soil

D. Alluvial Soil

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Correct Answer: Option A

Explanation:
Cashew plantations thrive in laterite soils, particularly in coastal regions of India.

This question belongs to: Geography GK Soils of India

Question #53

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The soil found in river deltas is mainly:

A. Black Soil

B. Desert Soil

C. Red Soil

D. Alluvial Soil

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Correct Answer: Option D

Explanation:
River deltas receive fertile alluvial deposits carried by rivers.

This question belongs to: Geography GK Soils of India

Question #54

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Which soil is known for self-ploughing characteristics?

A. Laterite Soil

B. Red Soil

C. Black Soil

D. Mountain Soil

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Correct Answer: Option C

Explanation:
The shrinking and swelling nature of black soil creates cracks, resulting in self-ploughing.

This question belongs to: Geography GK Soils of India

Question #55

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Which soil is most deficient in organic matter?

A. Alluvial Soil

B. Mountain Soil

C. Desert Soil

D. Peaty Soil

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Correct Answer: Option C

Explanation:
Desert soils have very low organic matter due to sparse vegetation and arid climate.

This question belongs to: Geography GK Soils of India

Question #56

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The term 'Pedology' refers to the study of:

A. Mountains

B. Climate

C. Soils

D. Rivers

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Correct Answer: Option C

Explanation:
Pedology is the scientific study of soils, their formation, classification, and properties.

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Question #57

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Which nutrient is commonly deficient in Indian soils?

A. Nitrogen

B. Helium

C. Oxygen

D. Hydrogen

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Correct Answer: Option A

Explanation:
Nitrogen deficiency is common in many Indian soils and often requires fertilizer application.

This question belongs to: Geography GK Soils of India

Question #58

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Soil salinity is a major problem in:

A. Mountain peaks

B. Dense forests only

C. Glaciers

D. Irrigated dry regions

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Correct Answer: Option D

Explanation:
Excessive irrigation and poor drainage can lead to salt accumulation in soils.

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Question #59

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Which state is famous for extensive laterite soil?

A. Bihar

B. Haryana

C. Kerala

D. Punjab

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Correct Answer: Option C

Explanation:
Kerala experiences heavy rainfall and tropical conditions conducive to laterite soil formation.

This question belongs to: Geography GK Soils of India

Question #60

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The process of breaking rocks into smaller particles is called:

A. Erosion

B. Deposition

C. Weathering

D. Leaching

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Correct Answer: Option C

Explanation:
Weathering is the disintegration and decomposition of rocks that contributes to soil formation.

This question belongs to: Geography GK Soils of India

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