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Q11 (CDS-I/2023) Geography › Indian Physical Geography › Indian soil types Answer Verified

Consider the following characteristics of a soil type: 1. These soils consist of various proportions of sand, silt and clay. 2. These soils contain adequate proportions of potash, phosphoric acid and lime. 3. These soils can be further classified on the basis of their age. Identify the type of soil on the basis of the given characteristics.

Result
Your answer: —  ·  Correct: A

Explanation

The characteristics described correspond to Alluvial soil. These soils are formed by the deposition of sediments by rivers and consist of varying proportions of sand, silt, and clay [1]. Chemically, alluvial soils are generally rich in potash, phosphoric acid, and lime, which makes them highly fertile and suitable for the growth of crops like sugarcane, paddy, and wheat. A unique feature of alluvial soil is its classification based on age; it is divided into 'Bangar' (old alluvium) and 'Khadar' (new alluvium) [2]. While Bangar contains higher concentrations of calcareous nodules (kanker), Khadar is more fertile and fine-grained [1]. Other soil types like Laterite are formed by leaching and are deficient in lime and potash [2], while Black soil is primarily clayey and lacks phosphoric acid.

Sources

  1. [1] NCERT. (2022). Contemporary India II: Textbook in Geography for Class X (Revised ed.). NCERT. > Chapter 1: The Rise of Nationalism in Europe > Fig. 1.6: Alluvial Soil > p. 9
  2. [2] https://www.kharagpurcollege.ac.in/studyMaterial/52445Indian-Soil-Geography-semester-III-07-09-2020.pdf
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SIMILAR QUESTIONS

CDS-I · 2021 · Q67 Relevance score: 1.89

Identify the type of soil on the basis of the given characteristics : 1. They are rich in lime, iron, magnesia and alumina. 2. They are generally clayey, deep and impermeable. 3. They are mainly found in Maharashtra, Madhya Pradesh and Gujarat. Select the correct answer from the given alternatives :

CDS-I · 2022 · Q55 Relevance score: 1.01

Match List I with List II and select the correct answer using the code given below the lists:

List I (Soil Type) List II (Salient Characteristic)
A. Entisols 1. Soils having weakly or quickly developed horizons
B. Inceptisols 2. Weakly developed soils with no horizons
C. Histosols 3. These soils are very old and highly weathered
D. Oxisols 4. These soils have very high quantity of organic matter in the upper layers

Code:

A B C D

CDS-II · 2016 · Q45 Relevance score: 0.84

Which of the following statements regarding soil is/are correct? 1. Alluvial soils are rich in nitrogen content. 2. Black soils are rich in iron and lime but deficient in nitrogen. 3. Laterite soils are rich in iron and aluminium but deficient in nitrogen and potassium. Select the correct answer using the code given below.