Which of the following statements are correct in relation to the vast plains of India?
1. India has the world's largest alluvium deposit
2. Bangar has new alluvium as compared to Khadar region
3. Khadar region is located in low altitude areas
5Q:
Which of the following statements are correct in relation to the vast plains of India?
1. India has the world's largest alluvium deposit
2. Bangar has new alluvium as compared to Khadar region
3. Khadar region is located in low altitude areas
- 11 and 2 onlyfalse
- 22 and 3 onlyfalse
- 31 and 3 onlytrue
- 41, 2 and 3false
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Answer : 3. "1 and 3 only"
Explanation :
Alluvial soils: Alluvial soils are widespread soils in India mostly in Northern Plains and River valleys. These soils cover 40% of the total area of the country. Hence statement a is correct These soils are depositional soils transported and deposited by rivers and streams. Alluvial soils are categorised as Khadar and Bangar based on deposition. Hence statement c is correct. Khadar - New alluvium, deposited by floods annually. Bangar- old alluvium, deposited away from flood plains. Both Khadar and Bangar contain Calcerous concentration (kankars). Khadar soil is more fertile than Bangar. Hence option d is correct. Alluvial soils are fertile soils. Their nature various from sandy, loam to clay. Hence statement b is correct. Alluvial soils contain an adequate amount of Potash, phosphoric acid and lime. Hence statement e is correct. These soils are intensively cultivated. They are suitable for the cultivation of Sugarcane, paddy, wheat and pulses. Hence statement f is correct. Alluvial soil colour varies from light grey to ash grey.