Question

1. Explain weathering. Mention the factors that affect the rate of weathering and soil erosion.
2. Explain the formation of soil with the help of a labelled diagram.
3. What are the major soil types found in India? Give one important characteristic of each.
5. Why is conservation of soil important? Suggest three different ways of soil conservation.
3. Distinguish between transp
4. How is a delta formed?
5. Why is humus formed more rapidly in humid areas?
Answer the following questions.
4. Describe the journey of a river from its source to its mouth.
Value Based Question​

Answer 1

Answer:

1. Weathering is a process by which rocks are broken down into smaller pieces so that they can be taken away by agents of erosion such as wind, air or ice. Rainfall, heat and moisture are the 3 main factors which affect the rate of weathering and soil erosion. Weathering happens more quickly in hot and wet climates.
2. The soil is formed in millions of year. The soil is made up of very small particles . the soil is a thin layer of material covering the earth surface and is formed from the weathering of rocks. it is made up mainly of mineral particles , organic materials , air , water and living organism.
3. the major soil types found in india are:-

1. alluvial soil- very fertile

- sediment deposited by river.

2. black soil- Cotton soil

- Maharashtra, Karnataka

3. red soil- presence of iron

- north eastern parts.

4. laterite soil- formed by leaching process

5. mountain soil- Himachal Pradesh

6. soil erosion- removal of top layer of soil.

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Answer 2

Answer:

Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering and erosion.