Question

degradation of soil and preparing of soil profile
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Answer 1

Answer:

An area of about 21.7 million hectares of soil is rendered unproductive due to salinity and water- logging. The saline degradation is due to natural causes and poor irrigation practices which disturb the water cycle in areas. ... Mining: Mining disturbs the physical, chemical and biological features of the soil.

Explanation:

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Answer 2

Degradation of soil :-

Soil erosion and deputation are the major threats to soil as a resource both human and nature can lead to degradation of soil.

Preparing of soil profile :-

It takes hundred years to make just one centimetre of soil.