Soil Quiz - CBSE Class 10 Science

Free practice quiz: Soil (CBSE Class 10 Science). 18 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 10 Science practice quiz has 18 multiple-choice questions on Soil, and 18 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Which layer of soil is richest in organic material?

   1. Topsoil
   2. Subsoil
   3. Bedrock
   4. Weathered rock
   Show answer

   Answer: A. Topsoil

   Topsoil is the uppermost layer of the soil and is richest in organic materials due to the presence of decayed plant and animal matter.

2. Which process leads to the formation of soil?

   1. Condensation
   2. Erosion
   3. Weathering
   4. Photosynthesis
   Show answer

   Answer: C. Weathering

   Weathering is the process through which rocks are broken down into smaller particles to eventually form soil.

3. What is humus?

   1. Mineral particles
   2. Organic matter from decayed organisms
   3. Water-holding capacity
   4. A type of soil
   Show answer

   Answer: B. Organic matter from decayed organisms

   Humus is organic matter in soil formed by the decomposition of plant and animal material.

4. How does soil texture affect plant growth?

   1. By influencing soil acidity
   2. By affecting water drainage and retention
   3. By changing soil color
   4. By determining the soil's temperature
   Show answer

   Answer: B. By affecting water drainage and retention

   Soil texture affects water drainage and retention, thus influencing plant growth by providing appropriate moisture levels.

5. In which type of climate does soil formation occur fastest?

   1. Cold and dry
   2. Cold and wet
   3. Warm and wet
   4. Warm and dry
   Show answer

   Answer: C. Warm and wet

   Soil formation occurs fastest in warm and wet climates due to increased weathering and decomposition rates.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which soil property determines its water-holding capacity?
2. What is the role of clay in soil?
3. Which soil is best suited for growing paddy?
4. What effect does a high pH have on soil?
5. Which of the following is a natural method of soil conservation?
6. What is an important benefit of earthworms in soil?
7. Which horizon of soil is known as the 'oparent material'?
8. What is the role of loamy soil in agriculture?
9. What type of organisms thrive in soil to help break down organic material?
10. Which soil layer is known as the 'zone of accumulation'?
11. How do plants contribute to the formation of soil?
12. What is the impact of deforestation on soil quality?
13. Which soil component is mainly responsible for the fertility of soil?

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