write about open wells
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Open wells are used to extract water found at the shallowest level in that area, which are typically found in unconfined shallow aquifers, i.e., soil or rock layers at shallow depths underground, in which water is held without any pressure.
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An open well is simply a hole in the ground that allows access to water underground. ... The open well is perhaps the earliest tool invented by mankind to access groundwater. It saved humans from the tyranny of rivers – once open wells were invented, humans no longer needed to live around rivers, and could move inland.
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