Question

what is the meaning of contour trenches

Answer 1

Contour trenching is an agricultural technique that can be easily applied in arid sub-Sahara areas to allow for water, and soil conservation, and to increase agricultural production.
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Answer 2

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contour trenches is an agricultural technique that can be easily applied in arid sub-Sahara areas to allow for wateroil conservation, and to increase agricultural production. between two trenches crops can be benifit during the growing season from the subsoil water reserve gathered during the rainy season....

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