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Social Science · 2025 · 2 marks
CBSE 2025 · Region 3 · Set 1 · Q23
(a) Describe any two features of 'arid soils'.
(a)
Describe any two features of 'arid soils'.
OR
(b)
Describe any two features of 'forest soils'.
Marking-scheme solution
(i) Arid soils range from red to brown in colour.
(ii) They are generally sandy in texture and saline in nature.
(iii) In some areas the salt content is very high and common salt is obtained by evaporating the water.
(iv) Due to the dry climate and high temperature evaporation is faster and the soil lacks humus and moisture.
(v) The lower horizons of the soil are occupied by Kankar because of the increasing calcium content downwards.
(b) Describe any two features of ‘forest soils’.
(i) Mainly found in the hilly and mountainous areas where sufficient rain forests are available.
(ii) Soils texture varies according to the mountain environment.
(iii) Loamy and silty in valley sides and coarse grained in the upper slopes.
(iv) In the snow-covered areas of Himalayas, these soils experience denudation and are acidic with low humus content.
(v) The soils found in the lower parts of the valleys particularly on the river terraces and alluvial fans are fertile.
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CBSE Class 10 Social Science past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.