Soil as an Important Resource


 
 
Concept Explanation
 

Soil as an Important Resource

Soil as a Resource: Soil is the most important renewable natural resource. It is the medium of plant growth and a living system which supports many types of living organisms. It takes millions of years to form soil up to a few centimeter in depth. The important factors in the soil formation are relief, parent rock or bed rock, climate, vegetation and forms of life. Forces of nature such as change in temperature, actions of running water, wind and glaciers, activities of decomposers etc also contribute to soil formation. Chemical and organic changes happened in the soil are equally important for its formation. Soil consists of both inorganic and organic materials (i.e. humus).

Classification of Soils: Soils in India are classified into different types on the basis of chemical and physical factors like colour, thickness, texture, age, etc. India has varied relief features, landforms, climate and vegetation. All these have contributed to the formation of following types of soils:-

  • Alluvial Soil
  • Black Soil
  • Red & Yellow soil
  • Laterite soil
  • Dessert or Arid Soils
  • Forest & Mountain Soil
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    In alluvial soil, when the amount of sand particles and silt are almost equal, what is it called ?

    Right Option : D
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    Explanation
    Question : 2

    On the basis of area, what is the correct descending order of India's soils -

    Right Option : C
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    Explanation
    Question : 3

    What is referred as the breaking up and decaying of exposed rocks by the ?

    Right Option : A
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    Explanation
     
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