Consider the following statements with reference to alluvial soils in India: Khadar and Bhangar soils contain kankars. Alluvial soils are rich in phosphorous but poor in potash. The alluvial soils are predominantly sandy in nature.Which of the statements given above is/are not correct?a)1 and 2 onlyb)2 and 3 onlyc)3 onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?

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Consider the following statements with reference to alluvial soils in India:

Khadar and Bhangar soils contain kankars.
Alluvial soils are rich in phosphorous but poor in potash.
The alluvial soils are predominantly sandy in nature.

Which of the statements given above is/are not correct?

a)
1 and 2 only
b)
2 and 3 only
c)
3 only
d)
1, 2 and 3

Correct answer is option 'B'. Can you explain this answer?

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Consider the following statements with reference to alluvial soils in ...

The alluvial soils vary in nature from sandy loam to clay. They are generally rich in potash but poor in phosphorous. Hence statements 2 and 3 are not correct.
In the Upper and Middle Ganga plain, two different types of alluvial soils have developed, viz. Khadar and Bhangar.
Khadar is the new alluvium and is deposited by floods annually, which enriches the soil by depositing fine silts. Bhangar represents a system of older alluvium, deposited away from the flood plains.
Both the Khadar and Bhangar soils contain calcareous concretions (Kankars). These soils are more loamy and clayey in the lower and middle Ganga plain and the Brahmaputra valley. Hence statement 1 is correct.
The sand content decreases from the west to the east.
Alluvial soils are not very deep in nature. Black soils are very deep in nature.
The particles that make up soil are categorized into three groups by size – sand, silt, and clay. Sand particles are the largest and clay particles the smallest. Most soils are a combination of the three. The relative percentages of sand, silt, and clay are what give soil its texture. A clay loam texture soil, for example, has nearly equal parts of sand, slit, and clay. This textural separates result from the weathering process.

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Consider the following statements with reference to alluvial soils in India: Khadar and Bhangar soils contain kankars. Alluvial soils are rich in phosphorous but poor in potash. The alluvial soils are predominantly sandy in nature.Which of the statements given above is/are not correct?a)1 and 2 onlyb)2 and 3 onlyc)3 onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?

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