Which of the following methods is are suitable for soil conservation in hilly region Terracing and c...........

General Science (Easy) Physics

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Which of the following methods is/are suitable for soil conservation in hilly region?

Terracing and contour bounding
Shifting cultivation
Contour ploughing

Select the correct answer using the code give below.

1 and 3 only

2 only

3 only

1, 2 and 3

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Explanation:

1 and 3 only

Ploughing along the contour lines can decelerate the flow of water down the slopes. This is called contour ploughing.
Steps can be cut out on the slopes making terraces. Terrace cultivation restricts erosion.
Large fields can be divided into strips. Strips of grass are left to grow between the crops. This breaks up the force of the wind. This method is known as strip cropping. Strip cropping method reduce the soil erosion