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.
Play all 18 questions freeSample questions
Which layer of soil is richest in organic material?
- Topsoil
- Subsoil
- Bedrock
- Weathered rock
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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.
Which process leads to the formation of soil?
- Condensation
- Erosion
- Weathering
- Photosynthesis
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Answer: C. Weathering
Weathering is the process through which rocks are broken down into smaller particles to eventually form soil.
What is humus?
- Mineral particles
- Organic matter from decayed organisms
- Water-holding capacity
- A type of soil
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Answer: B. Organic matter from decayed organisms
Humus is organic matter in soil formed by the decomposition of plant and animal material.
How does soil texture affect plant growth?
- By influencing soil acidity
- By affecting water drainage and retention
- By changing soil color
- By determining the soil's temperature
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Answer: B. By affecting water drainage and retention
Soil texture affects water drainage and retention, thus influencing plant growth by providing appropriate moisture levels.
In which type of climate does soil formation occur fastest?
- Cold and dry
- Cold and wet
- Warm and wet
- Warm and dry
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Answer: C. Warm and wet
Soil formation occurs fastest in warm and wet climates due to increased weathering and decomposition rates.