Question

Higher concentration of kankar nodules are found in the __________.
A) Bhangar Soil
B) Khadar Soil
C) Lateritic Soil
D) Red Soil

Answer 1

Hint: Alluvial soils can be graded as old alluvial and new alluvial soils, according to their generation (Khadar). It is mostly derived from the Himalayan debris or the silt left by the retreating water. Kankar is a sedimentological term originating from Hindi that is sometimes applied to detrital or residual rolling, typically nodular, calcium carbonate generated in semi-arid soils in India and the United States.

Complete answer:
The Kanker nodules concentrate calcium carbonate, which occurs in the Indo Gangetic plain like nodules and pebbles. They are normally enclosed and obstruct fertility in the Bangar soil. In the older layers of alluvium, kanker nodules are typically found.

Let us analyze the given options:
Option (A) Bangar soil: This is the correct option. Alluvial soils are classed as ancient alluvial (Bangar) or new alluvial (Bangar) based on their age (Khadar). The Bangar soil contains more kanker nodules than the Khadar soil. It is more fruitful and has finer particles than the bangar.

Option (B) Khadar Soil: This option is incorrect because although Khadar is a fertile land. It has calcareous deposits known as Kankar in the area. This is fine-grained dirt yet it does not have as much kankar as Bangar soil.

Option (C) Lateritic soil: This option is incorrect because only the lower horizons of the soil are occupied by 'kankar' layers. Thus, it does not have a very high concentration of kankar nodules.

Option (D) Red Soil: This option is incorrect because red soil has a kankar layer only at the bottom levels which also prevents the infiltration of water so it does not have high concentration of kankar.

The correct option for the above given question is option (A) Bangar Soil. “Higher concentrations of kankar nodules are found in the Bangar Soil.”

Note: The abundance of kanker nodules is higher than that of chadar in bangar soils. It is more thin and fruitful than the bangar. Kankar is widely used in hydraulic lime production. Bangar soil is more fertile.