Question

D. Define the following: (3)

1. Soil conservation

2. Anti-septic

3. Migration
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Answer 1

Answer:

Soil Conservation: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.

Answer 2

Explanation:

(1) the protection of fertile topsoil from is erosion by wind the water and the replacement of nutrients in the soil as by means of cover crops terracingng contour farming crops rotating etc.