Question

Soil conservation means( )

A) Prevention of spread of desert
B) To check soil erosion by wind and rains
C) To check soil erosion by afforestation
D) All of these
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Answer 1

Soil conservation is the prevention of loss of the top most layer of the soil from erosion or prevention of reduced fertility caused by over usage, acidification, salinization or other chemical soil contamination. Basically option A.
Hope this helped:)

Answer 2

Answer:

Prevention of spread of desert