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| Arid soils range from red to brown in colour. They are generally sandy in texture and saline in nature. In some areas, the salt content is very high and common salt is obtained by evaporating the water. Due to the dry climate, high temperature, evaporation is faster and the soil lacks humus and moisture. The lower horizons of the soil are occupied by Kankar because of the increasing calcium content downwards. The Kankar layer formations in the bottom horizons restrict the infiltration of water. After proper irrigation, these soils become cultivable as has been in the case of western Rajasthan. |
What does the Kankar layer formation restrict in the bottom horizons?
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| Arid soils range from red to brown in colour. They are generally sandy in texture and saline in nature. In some areas, the salt content is very high and common salt is obtained by evaporating the water. Due to the dry climate, high temperature, evaporation is faster and the soil lacks humus and moisture. The lower horizons of the soil are occupied by Kankar because of the increasing calcium content downwards. The Kankar layer formations in the bottom horizons restrict the infiltration of water. After proper irrigation, these soils become cultivable as has been in the case of western Rajasthan. |
Which among the following statements best describes the nature of arid soil?
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Suggest two ways to conserve energy resources in India.
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'Workers of Assam had their own understanding of Mahatma Gandhi and the notion of Swaraj.' Explain with examples.
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Which of the following pair is correctly matched?
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'The Government can play a major role making a fair Globalisation.' Examine the statement.
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Which of the following pair is correctly matched?
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“M” gave his friend clues about a type of soil that suits for growing cotton.
Which of the following clues provided by "M" would be most useful in identifying the ideal type of soil?
- It is well-known for its capacity to hold moisture.
- It turns yellow when it is hydrated.
- It is rich in kankur and bhangar nodules.
- It is a well-drained loamy soil.
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Why was the cotton textile industry concentrated in the cotton growing belt in the early years? Explain.
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What was the role of women in the anti-imperial struggle in Vietnam? Compare this with the role of women in the nationalist struggle in India.
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Explain the following the port of Surat declined by the end of the eighteenth century.
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Write True or False against the statement.
The introduction of the fly shuttle enabled handloom workers to improve their productivity.
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Why did some industrialists in nineteenth-century Europe prefer hand labour over machines?
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How did the East India Company procure regular supplies of cotton and silk textiles from Indian weavers?
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Why were big European powers met in Berlin in 1885?
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Why were merchants from towns in Europe began to move the countryside in the seventeenth and eighteenth centuries?
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What is liberalization? Describe any four effects of liberalization on the Indian economy.
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What were the contributions of the Grimm Brothers in nation-building?
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Jacob and Wilhelm the two brothers who developed an interest in collecting old folktales were called:
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The Polish writer who coined the term ‘Young Poland’ for the first time was ____________.
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