Environmental Studies · 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 of the following is NOT a feature of the Red soil?

  1. Red soils are formed in situ by weathering of ancient crystalline and metamorphic rocks.

  2. They are rich in iron content, hence they are red in colour.

  3. Its productivity increases with regular use of fertilizers.

  4. They are non-porous in nature.

  5. Suitable for dry farming as they do not require much moisture.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is wrong. They are porous in nature but not moisture retentive.

Multiple choice

How is the Black soil formed?

  1. By weathering of Igneous rocks.

  2. By deposition of sediments.

  3. By weathering of sedimentary rocks.

  4. By weathering of metamorphic rocks.

  5. By solidification of volcanic lava.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Black soil is formed by the solidification of volcanic lava.

Multiple choice

Which of the following is not a feature of the Black soil?

  1. The black soil is well-known for its capacity to hold moisture.

  2. During the hot dry season, the surface of this soil develops cracks.

  3. The cracks help in the aeration of the soil.

  4. The black soil should be tilled immediately after the first or the pre-monsoon showers.

  5. This soil is made up of sandy material.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This soil is made up of extremely fine clayey material, not sandy material.

Multiple choice

__________ soil retains very little water.

  1. Clay

  2. Silt

  3. Humid

  4. Sand

  5. Loamy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sand soil particles are large in size. Hence, water retention capacity is very less. Thus, it provides good aeration.