Geography
How are alluvial soils formed?
Soil Resources
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Answer
Alluvial soil is formed by the sediments brought down by rivers. The rivers deposit very fine particles of soil called alluvium in their plains during the course of their long journey. The resultant alluvial soil is known as riverine soil.
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Related Questions
Give a geographical reason for each of the following:
(i) The colour of alluvium varies in different areas.
(ii) Khadar is more fertile than bhangar soil.
(iii) Black soil has a kind of self-ploughing characteristic.
(i) How can you say that soil has evolved over millions of years?
(ii) Name one important constituent of soil that adds fertility to the soil.
Mention any two advantages of alluvial soil.
Give a geographical reason for each of the following:
(i) Different regions in India have different kinds of soil for agriculture.
(ii) Alluvial soils vary in texture.
(iii) Nearly all types of crops grow well in riverine soils.