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प्रश्न
What are percolation pits?
संक्षेप में उत्तर
उत्तर
A percolation pit is a water-conservation technology. They help to recharge an area's groundwater. A percolation tank's base is made of porous materials such as soil, silt, loam, clay, sand, and gravel.
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अध्याय 6: Caring For Our Water - EXERCISES [पृष्ठ ७०]
