20 Terms
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Environmental conservation
Terms related to protecting natural resources including plant and animal species as well as their habitat for the future.
Industry: Environment
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Environmental conservation
half life
Environment; Environmental conservation
The time it takes certain materials such as persistent pesticides to become chemically altered.
hantush-jacob formula
Environment; Environmental conservation
An equation to describe the change in hydraulic head with time during pumping of a leaky confined aquifer.
hard water
Environment; Environmental conservation
Water containing a high level of calcium, magnesium, and other minerals. Hard water reduces the cleansing power of soap and produces scale in hot water lines and appliances.
hardness
Environment; Environmental conservation
A characteristic of water caused by various salts, calcium, magnesium and iron (e.g., bicarbonates, sulfates, chlorides and nitrates); hazardous waste which because of it quantity, concentration, or ...
hardpan
Environment; Environmental conservation
A shallow layer of earth material which has become relatively hard and impermeable, usually through the deposition of minerals. In the Edwards region hardpans of clay are common.
head
Environment; Environmental conservation
The pressure of a fluid owing to its elevation, usually expressed in feet of head or in pounds per square inch, since a measure of fluid pressure is the height of a fluid column above a given or ...
total head
Environment; Environmental conservation
The sum of the elevation head, the pressure head, and the velocity head at a given point in an aquifer.
