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the loss air in which is carbon , dust and the heavier density particles gets settled to the soil which helps the plants absorb water and minerals . that is for nomail rain and for harvesting the water can be reused for plants or use it for home after going through water fillteration system and plus u do not have to dig the earth for water or use water boosting or any other process which involves electricity and large amount of effort .

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12y ago

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