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Humanities/Arts Exam  >  Humanities/Arts Questions  >  Most fertile soils are found in thea)flood pl... Start Learning for Free
Most fertile soils are found in the
  • a)
    flood plains.
  • b)
    delta region.
  • c)
    river terraces.
  • d)
    estuaries.
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Most fertile soils are found in thea)flood plains.b)delta region.c)riv...
Because in delta region fine silt is deposited by the rivers,it has most fertile soils.
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Most Upvoted Answer
Most fertile soils are found in thea)flood plains.b)delta region.c)riv...
Yes it is correct answer
because..
sand from different lands is brought by water.Delta is a landform that forms from the deposition of sediment carried by rivers
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Most fertile soils are found in thea)flood plains.b)delta region.c)riv...
Soil Fertility in Delta Regions

Fertile soil is essential for agriculture and food production. The type of soil that is most fertile depends on various factors such as climate, topography, and geological history. In this case, the most fertile soil is found in delta regions.

Formation of Delta Regions

A delta is a landform that forms at the mouth of a river where it meets the sea. When a river flows into the sea, it loses its velocity and deposits the sediments it carried along its course. Over time, these sediments build up and form a delta region. The delta is characterized by a network of distributary channels, swamps, and marshes.

Factors that Make Delta Regions Fertile

Delta regions are known to be highly fertile due to several factors:

1. Sediment deposition: As the river enters the delta, it slows down, and the sediments it carries settle at the bottom. The deposition of sediments enriches the soil with minerals and nutrients, making it fertile.

2. Floodplains: Deltas are characterized by low-lying areas that are prone to flooding. These floodplains are rich in nutrients and organic matter, making them ideal for agriculture.

3. Water supply: Deltas are surrounded by water on three sides, making them ideal for irrigation. The water supply helps to regulate the temperature and humidity levels, creating a favorable environment for crop growth.

4. Climate: Delta regions have a warm and humid climate, which is ideal for crop growth. The warm temperatures and abundant rainfall provide a conducive environment for plant growth.

Benefits of Fertile Soil in Delta Regions

The fertility of soil in delta regions has several benefits:

1. Agriculture: Delta regions are ideal for agriculture due to their fertile soil. The rich soil supports the growth of crops such as rice, wheat, and vegetables.

2. Biodiversity: The fertile soil in delta regions supports a diverse array of plant and animal life. This biodiversity is essential for maintaining ecological balance and supporting human life.

Conclusion

In conclusion, the most fertile soil is found in delta regions due to sediment deposition, floodplains, water supply, and climate. The fertility of the soil in delta regions supports agriculture, biodiversity, and human life.
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Direction: Read the case study given below and answer any three of the questions that follow.Saline soils contain a larger proportion of sodium, potassium and magnesium, and thus, they are infertile, and do not support any vegetative growth. They have more salts, largely because of dry climate and poor drainage. They occur in arid and semi-arid regions, and in waterlogged and swampy areas. Their structure ranges from sandy to loamy. They lack in nitrogen and calcium. Saline soils are more widespread in western Gujarat, deltas of the eastern coast and in Sunderbans areas of West Bengal. In the Rann of Kachchh, the Southwest Monsoon brings salt particles and deposits there as a crust. Seawater intrusions in the deltas promote the occurrence of saline soils. In the areas of intensive cultivation with excessive use of irrigation, especially in areas of Green Revolution, the fertile alluvial soils are becoming saline. Excessive irrigation with dry climatic conditions promotes capillary action, which results in the deposition of salt on the top layer of the soil. In such areas, especially in Punjab and Haryana, farmers are advised to add gypsum to solve the problem of salinity in the soil.Q. Where can the saline soils be found?

Direction: Read the case study given below and answer the questions that follow:Each nomadic community occupies a well identified territory as a matter of tradition. Pastoral nomadism is associated with three important regions. The core region extends from the Atlantic shores of North Africa east wards across the Arabian Peninsula into Mongolia and Central China. The second region extends over the tundra region of Eurasia. In the southern hemisphere, there are small areas in South-west Africa and on the island of Madagascar.Movement in search of pastures is undertaken either over vast horizontal distances or vertically from one elevation to another in the mountainous regions. The process of migration from plain areas to pastures on mountains during summers and again from mountain pastures to plain are as during winters is known as transhumance. In mountain regions, such as Himalayas, Gujjars, Bakarwals, Gaddis and Bhotiyas migrate from plains to the mountains in summers and to the plains from the high altitude pastures in winters. Similarly, in the tundra regions, the nomadic herders move from south to north in summers and from north to south in winters.Where are Gaddi tribe found?

Direction: Read the case study given below and answer any three of the questions that follow.The destruction of the soil cover is described as soil erosion. The soil forming processes and the erosional processes of running water and wind go on simultaneously. But generally, there is a balance between these two processes. The rate of removal of fine particles from the surface is the same as the rate of addition of particles to the soil layer. Sometimes, such a balance is disturbed by natural or human factors, leading to a greater rate of removal of soil. Human activities too are responsible for soil erosion to a great extent. As the human population increases, the demand on the land also increases. Forest and other natural vegetation are removed for human settlement, for cultivation, for grazing animals and for various other needs. Wind and water are powerful agents of soil erosion because of their ability to remove soil and transport it. Wind erosion is significant in arid and semi-arid regions. In regions with heavy rainfall and steep slopes, erosion by running water is more significant. Water erosion which is more serious and occurs extensively in different parts of India, takes place mainly in the form of sheet and gully erosion. Sheet erosion takes place on level lands after a heavy shower and the soil removal is not easily noticeable. But it is harmful since it removes the finer and more fertile top soil. Gully erosion is common on steep slopes. Gullies deepen with rainfall, cut the agricultural lands into small fragments and make them unfit for cultivation. A region with a large number of deep gullies or ravines is called a bad land topography. Ravines are widespread, in the Chambal basin. Besides this, they are also found in Tamil Nadu and West Bengal. The country is losing about 8,000 hectares of land to ravines every year.Q. Ravines are widespread in the ________ basin.

Direction: Read the case study given below and answer any three of the questions that follow.The destruction of the soil cover is described as soil erosion. The soil forming processes and the erosional processes of running water and wind go on simultaneously. But generally, there is a balance between these two processes. The rate of removal of fine particles from the surface is the same as the rate of addition of particles to the soil layer. Sometimes, such a balance is disturbed by natural or human factors, leading to a greater rate of removal of soil. Human activities too are responsible for soil erosion to a great extent. As the human population increases, the demand on the land also increases. Forest and other natural vegetation are removed for human settlement, for cultivation, for grazing animals and for various other needs. Wind and water are powerful agents of soil erosion because of their ability to remove soil and transport it. Wind erosion is significant in arid and semi-arid regions. In regions with heavy rainfall and steep slopes, erosion by running water is more significant. Water erosion which is more serious and occurs extensively in different parts of India, takes place mainly in the form of sheet and gully erosion. Sheet erosion takes place on level lands after a heavy shower and the soil removal is not easily noticeable. But it is harmful since it removes the finer and more fertile top soil. Gully erosion is common on steep slopes. Gullies deepen with rainfall, cut the agricultural lands into small fragments and make them unfit for cultivation. A region with a large number of deep gullies or ravines is called a bad land topography. Ravines are widespread, in the Chambal basin. Besides this, they are also found in Tamil Nadu and West Bengal. The country is losing about 8,000 hectares of land to ravines every year.Q. The country is losing about __________ hectares of land to ravines every year.

Direction: Read the case study given below and answer any three of the questions that follow.The destruction of the soil cover is described as soil erosion. The soil forming processes and the erosional processes of running water and wind go on simultaneously. But generally, there is a balance between these two processes. The rate of removal of fine particles from the surface is the same as the rate of addition of particles to the soil layer. Sometimes, such a balance is disturbed by natural or human factors, leading to a greater rate of removal of soil. Human activities too are responsible for soil erosion to a great extent. As the human population increases, the demand on the land also increases. Forest and other natural vegetation are removed for human settlement, for cultivation, for grazing animals and for various other needs. Wind and water are powerful agents of soil erosion because of their ability to remove soil and transport it. Wind erosion is significant in arid and semi-arid regions. In regions with heavy rainfall and steep slopes, erosion by running water is more significant. Water erosion which is more serious and occurs extensively in different parts of India, takes place mainly in the form of sheet and gully erosion. Sheet erosion takes place on level lands after a heavy shower and the soil removal is not easily noticeable. But it is harmful since it removes the finer and more fertile top soil. Gully erosion is common on steep slopes. Gullies deepen with rainfall, cut the agricultural lands into small fragments and make them unfit for cultivation. A region with a large number of deep gullies or ravines is called a bad land topography. Ravines are widespread, in the Chambal basin. Besides this, they are also found in Tamil Nadu and West Bengal. The country is losing about 8,000 hectares of land to ravines every year.Q. The soil forming processes and the erosional processes of running water and wind go on ________

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Most fertile soils are found in thea)flood plains.b)delta region.c)river terraces.d)estuaries.Correct answer is option 'B'. Can you explain this answer?
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