Examlex
The interquartile range IQR is found by subtracting the mean from the maximum value
of a data set.
River
A large natural stream of water flowing in a channel to the sea, a lake, or another river, often a central feature in ecosystems and human civilizations.
Lower Reaches
The downstream part of a river close to its mouth where it meets a larger body of water.
Aquifer
An underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) that can yield significant quantities of water.
Well
A deep hole drilled or dug into the ground to access water, oil, gas, or other underground resources.
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