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प्रश्न
Explain how soil is formed.
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उत्तर
Soil is formed through the process of weathering. Weathering is a process of physical breakdown and chemical decomposition of rocks and minerals near or at the surface of the earth. This physical and chemical decomposition is primarily done by wind, water, and climate. As a result of these processes, large rock pieces are converted into smaller pieces and eventually to soil.
संबंधित प्रश्न
Sketch the cross section of soil and label the various layers.
Distinguish between the following pair
Soil erosion and soil conservation
Name any four agents of erosion.
Name the various methods of conserving soil.
What is meant by the terms ‘soil erosion’ and ‘soil conservation’?
Why is soil conservation important? Give three reasons.
The photograph shows a framing method that helps in controlling soil erosion.
- What is this farming method called
- Mention any two other methods that help in controlling soil erosion.
Read the following statements with reference to soil.
- Weathering is a very fast process of soil formation.
- Percolation of water is faster in sandy soils.
- Loamy soil contains only sand and clay.
- Top soil contains the maximum amount of humus.
Choose the correct statements from the above.
A man digging a pit found that he could dig with ease initially but digging became difficult as he went deeper. He could not dig beyond a depth of 5 feet. Provide a suitable scientific explanation.
Several terms related to soil are hidden in the squares given in figure. Spot them and make a list. Two examples are given for you.
