Function of Soil


 
 
Concept Explanation
 

Function of Soil

Soil and its Functions: 

Soil gives mechanical support or anchorage to plants.If there had been no soil the existence of plants would be impossible.

  • The roots of plants get oxygen from the soil through the process of aeration. For this, the soil should be loose so that roots may penetrate it properly and hold firmly to it. There should not be excess water in the soil as this would adversely affect aeration.
  • Soil provides mineral nutrients for the growth of plants. Water trapped within the soil is available to the roots of plants.
  • Animals obtain their food directly or indirectly from plants. Thus, animal life too is dependent on soil.
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    Sample Questions
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    Question : 1

    Clayey soil is used in making pots and toys.

    Right Option : A
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    Question : 2

    _________________ trapped within the soil is available to the roots of plants.

    Right Option : C
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    Explanation
    Question : 3

    _________________ decompose the organic matter and break it in to simpler form.

    Right Option : A
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