Agriculture · Soil and Water Conservation
How do contour bunds and contour trenches on hill slopes aid in water conservation?
- 1By reducing the total depth of the topsoil
- 2By slowing down runoff and increasing water infiltration✓
- 3By blocking all rainfall from entering the soil
- 4By speeding up runoff to nearby rivers
Correct answer
By slowing down runoff and increasing water infiltration
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