SOILS OF INDIA-10th Standard Social Science Notes




I Choose the Correct answer from the following alternatives:

1. The Soil is highly suitable for dry farming is Soil.

a)Black b)red c)Latarite d)Allevial

2. Black soil is formed from the weathering of Rocks

a )Igneous b)Basalt c)Quartz d)Sedimentory

3. Soil is also called black cotton soil.

a) Red soil b) Desert Soil c) Teral soil d) Regur soil

4. Black soil is very useful for the Cultivation of

a) Jute b)Wheat c) Cotton d)Rice

II. Fill in the blanks with suitable words:

1. The soil deposited by rivers is called Alluvial soil

2. Black soil area is called Deccan Trap .

3. In Rajasthan Desert soil soil are also mainly found.

4. For growing cotton Black soil is suitable.

5. For growing ragi and oil seeds, Red soil is suitable.

III Match the following:

1. Alluvial soil a. to grow ragi and oil seeds C

2. Black soil b. soil of the Western Ghats D

3. Red soil c. the Gangetic plain A

4. Laterite soil d. to grow cotton B

--------------------e. to grow coffee and Tea.

IV. Answer the following after discussing them in groups:

1. Which crop can be grown better in the black soils?

Caftan, Jowar , Wheat , Onion , Chili, Tobacco , Oil Seeds , Lemon and Grapes

2. What are the types of soils found in India?

1. Alluvial soil

2. Black soil

3. Red soil

4. Laterite soil

5. Desertsoil and

6. Mountainous soil.

3. What kind of soil is found in the northern plains?

Alluvial Soil

4. What is meant by soil couservation? List out its methods.

Prevention of soil erosion and protecting the fertility of the soil is known as Conservation of Soil. In addition to this, protecting the fertility of the soil and using the soil in a healthy way for increasing the agricultural produce is its management. The five-year plans have given a lot of importance to this aspect.

There are many ways of preventing soil erosion:

i. Counter floughing.

ii. Constructrion of bunds arround the agriculture land. iii. Development of terraced agricultural fields.

iv. Prevention of deforestation and encouragement of afforestation.

v. Control of livestock grazing. vi. Planned use of water.

vii. Construction of check dams etc.

5. What is soil erosion? Collect information of its effects.

Transportation of surface soil by various natural forces is called soil erosion.

Effects of soil erosion: Soil erosion leads to many problems. Most important of them are:

1) Soil erosion leads to accumulation of silt in the river beds, thereby causing floods.

2) With accumulation of silt in river course changing direction of rivers course.

3) Due to accumulation of silt, the storage capacity of the reservoirs get reduced.

4) Due to soil erosion, the volume of water percolating down gets reduced. Due to this, natural springs dry up. As India is mainly dependent on agriculture, its productivity is reduced. Hence, to preserve fertility and productivity, prevention of soil erosion is essential.

6. Which types of soils are found in the Himalayan mountains?

Mountain Soil

7. What are the causes for soil erosion?

The important causes are

1. Deforestation 2. Over grazing

3. Unscientific methods of cultivation. 4. Over irrigation etc.

Even manufacture of bricks, tiles and pots use the top layer of the soil leaving behind depleted soil. Running water, winds and sea waves are the main causes of soil erosion.

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