Environmental Studies ยท Geography

Soil Science

1,499 Questions

Soil Science examines the formation, classification, and properties of soil as a critical natural resource. This hub offers practice questions covering soil horizons, soil types like laterite and black soil, and regional soil characteristics. The content is highly useful for agriculture exams and civil services preparation.

Soil typesSoil horizonsSoil formation factorsAgricultural soil requirementsIndian soilsForest and mountain soils

Soil Science Questions

Multiple choice

Which type of soil is most resistant to erosion?

  1. Sandy soil

  2. Clay soil

  3. Loam soil

  4. Silt soil
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Clay soil, due to its fine texture and high cohesion, is most resistant to erosion as it is less easily detached and carried away by wind or water.

Multiple choice

Which of the following is a key component of the Soil and Land Use Survey of India (SLUSI)?

  1. Mapping and classification of soils

  2. Assessment of soil health and fertility

  3. Identification of degraded lands

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Soil and Land Use Survey of India (SLUSI) involves mapping and classification of soils, assessment of soil health and fertility, and identification of degraded lands.

Multiple choice

Which of the following is a key component of the Soil and Land Use Survey of India (SLUSI)?

  1. Mapping and classification of soils

  2. Assessment of soil health and fertility

  3. Identification of degraded lands

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Soil and Land Use Survey of India (SLUSI) involves mapping and classification of soils, assessment of soil health and fertility, and identification of degraded lands.

Multiple choice

How does soil quality affect population distribution in India?

  1. Fertile soils attract dense populations.

  2. Infertile soils repel population.

  3. Soil quality has no impact on population distribution.

  4. Soil quality only affects rural populations.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fertile soils are essential for agriculture, which is the primary livelihood for a large portion of India's population. Areas with fertile soils, such as the Indo-Gangetic Plain, have higher population densities compared to regions with infertile soils.

Multiple choice

Which of the following is the most important factor influencing the distribution of soils in India?

  1. Climate

  2. Relief

  3. Parent material

  4. Vegetation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Parent material is the most important factor influencing the distribution of soils in India because it determines the chemical and physical properties of the soil.

Multiple choice

Which of the following is the most widespread soil type in India?

  1. Black soil

  2. Red soil

  3. Laterite soil

  4. Alluvial soil
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Alluvial soil is the most widespread soil type in India, covering about 40% of the total land area.

Multiple choice

Which of the following is the most fertile soil type in India?

  1. Black soil

  2. Red soil

  3. Laterite soil

  4. Alluvial soil
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Black soil is the most fertile soil type in India due to its high content of organic matter and nutrients.

Multiple choice

Which of the following crops is best suited to black soil?

  1. Wheat

  2. Rice

  3. Cotton

  4. Sugarcane
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cotton is best suited to black soil because it requires a well-drained soil with a high content of organic matter and nutrients.

Multiple choice

Which of the following crops is best suited to laterite soil?

  1. Cashew

  2. Rubber

  3. Coconut

  4. Arecanut
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cashew is best suited to laterite soil because it is a hardy crop that can tolerate acidic and infertile soil conditions.

Multiple choice

Which of the following crops is best suited to alluvial soil?

  1. Wheat

  2. Rice

  3. Sugarcane

  4. Potato
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Rice is best suited to alluvial soil because it requires a well-drained soil with a high water-holding capacity.

Multiple choice

Which of the following is a type of soil reinforcement?

  1. Geogrids

  2. Geotextiles

  3. Geocells

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Geogrids, geotextiles, and geocells are all types of soil reinforcement.

Multiple choice

Which of the following is NOT a major soil type found in India?

  1. Black soil

  2. Red soil

  3. Laterite soil

  4. Podzol soil
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Podzol soil is typically found in temperate and boreal regions, and is not a major soil type in India.

Multiple choice

Which region of India is known for its black soil?

  1. Deccan Plateau

  2. Gangetic Plain

  3. Himalayan Region

  4. Coastal Plains
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Deccan Plateau, particularly the states of Maharashtra, Karnataka, Andhra Pradesh, and Telangana, is known for its black soil, also known as regur soil.

Multiple choice

Which of the following is NOT a challenge faced in soil management in India?

  1. Soil salinity

  2. Waterlogging

  3. Deficiency of micronutrients

  4. Volcanic eruptions
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Volcanic eruptions are not a challenge faced in soil management in India, as the country is not prone to volcanic activity.

Multiple choice

What is the primary method used for soil sampling in India?

  1. Auger sampling

  2. Core sampling

  3. Pit sampling

  4. Random sampling
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Auger sampling is the primary method used for soil sampling in India. It involves using a hand-operated or motorized auger to collect soil samples from different depths.