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1. Weeds
2. Plough
3. threshing
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1
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1) weeds
2)hoe
hoeA hoe is an ancient and versatile agricultural and horticultural hand tool used to shape soil, remove weeds, clear soil, and harvest root crops.
3) winnowing
4)Levelling is a process of determining the height of one level relative to another. It is used in surveying to establish the elevation of a point relative to a datum, or to establish a point at a given elevation relative to a datum.
5)Improves soil fertility. Reduces soil erosion and leaching. Improves the physical properties of the soil and aerates the soil. Improves the water and nutrient holding capacity of the soil.
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