A) Mulching
B) Shelter belt
C) Gully plugging
D) Terracing
Correct Answer: B
Solution :
The shelter belt method of soil conservation is most effective in arid areas. A shelterbelt is a barrier of trees or shrubs. The term ?field shelterbelt? is used to distinguish between rows of trees or shrubs on agricultural fields from those planted in other ways: around farmyards or livestock facilities (farmstead shelterbelts). It controls soil erosion and traps the moisture which is necessary to grow crop in such regions.
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