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Q40 (CDS-II/2019) Geography › World Physical Geography › Weathering and erosion Answer Verified

Match List-1 with List-11 and select the correct answer using the code given below the lists: List-I (soil type) I. OxisOLS II. Vertisols III. Histosols IV. Entisols List-11 (Major Chanrdelistiral 1 Very rids in organic matter2 2 Soil lacking horizons 3 Very old and highly weathe- red 4 Rich in day content and highly basic Code: I II III IV

Result
Your answer: —  ·  Correct: B

Explanation

The classification of soil orders is based on their physical and chemical properties. Oxisols (I) are highly weathered tropical soils, often considered very old with low natural fertility [1]. Vertisols (II) are characterized by high clay content and a high shrink-swell potential, often forming deep cracks when dry; they are typically rich in bases [3]. Histosols (III) are organic soils, such as peat and muck, which are very rich in organic matter due to accumulation in wetland environments [2]. Entisols (IV) are the least developed soils, characterized by a lack of diagnostic horizons because they are either very young or formed on resistant parent material [3]. Matching these characteristics leads to the sequence: I-3, II-4, III-1, IV-2, which corresponds to option 2.

Sources

  1. [1] https://www.nrcs.usda.gov/sites/default/files/2022-06/Illustrated_Guide_to_Soil_Taxonomy.pdf
  2. [3] https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/entisol
  3. [2] https://openknowledge.fao.org/server/api/core/bitstreams/03d6d88c-abd9-4dea-b8f9-8376e38d70f8/content
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SIMILAR QUESTIONS

CDS-I · 2022 · Q55 Relevance score: 6.24

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 · 2015 · Q6 Relevance score: 4.77

Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (Plant) A. Ebony B. Shisham C. Walnut D. Birch List-II (Natural vegetation type) 1. Moist deciduous 2. Himalayan moist 3. Alpine 4. Tropical evergreen Code :

NDA-I · 2010 · Q35 Relevance score: 4.68

Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (landform) A. Inselbergs B. Stalagmite C. Delta D. Moraines List-II (Agent of erosion/ deposition) 1. River 2. Glacier 3. Undergroundwater 4. Wind Code : A B C D

CDS-II · 2015 · Q13 Relevance score: 4.59

Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (Weathering type) A. Chemical weathering B. Mechanical weathering C. Glacial deposits D. Deposition by ground- List-II (Landform/ Process) 1. Till 2. Oxidation 3. Plant roots 4. Stalactite Code :

CDS-II · 2017 · Q79 Relevance score: 4.48

Match List-I with List-11 and select the correct answer using the code given below the Lists : List-I List~n (Type of Land) (Meaning) A. Urvara 1. Land watered by a river B. Maru 2. Fertile land C. Nadimatrika 3. Land watered by rain D. Devamatrika 4. Desert land Code :