Soil science (shrink–swell clays): The heavy clay soils that show marked expansion when wet and contraction when dry are called what? Note: 'heavy day soils' in the prompt refers to heavy clay soils (typo clarified). Choose the correct soil order.
General Knowledge
World Geography
Difficulty: Easy
Choose an option
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AAridisols
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BVertisols
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CHistosols
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DAndisols
Answer
Correct Answer: Vertisols
Explanation
ConceptVertisols are clay-rich soils (e.g., black cotton soils) with high shrink–swell capacity, forming deep cracks when dry and expanding when moist. Aridisols are arid-region soils; Histosols are organic; Andisols form from volcanic ash.