which of these is a traditional technique of rainwater harvesting (a) recharge to groundwater (b) rooftop rainwater (c) erosion (d) water cycle
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Explanation:
Gully plug · Contour bund · Gabion structure · Percolation tank · Check dams / cement plugs / nala bunds · Recharge shaft · Dugwell recharge · Ground water dams or sub .
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