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Why are parent material and time considered as passive control factors in soil formation?

Answer»

Solution :(i) Parent Material: It is a PASSIVE factor in soil formation. Parent materials can be any insitu or on-site weathered rock debris or transported deposits. Soil formation depends upon the texture, structure as well as mineral and chemical COMPOSITION of the rock debris/ deposits.
(II) Time: It is the passive controlling factor in soil formation. The length of time the soil forming processes OPERATE determine maturation of soils and profile development. A soil becomes MATURE when all soil becomes mature g processes act for time developing a profile.


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