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Water

Water is a chemical compound with the chemical formula H20. A water molecule contains one hydrogen atom and two oxygen atoms. Water is a liquid at standard ambient temperature and pressure though it can be a solid (ice)in low temperatures or evaporate into water vapor a higher temperatures.

Contributors in Water

Water

sediment trapping efficiency

Natural environment; Water

the ratio of sediment retained within the reservoir to the sediment inflow to the reservoir.

watthour (Wh)

Natural environment; Water

an electrical energy unit of measure equal to one watt of power supplied to, or taken from, an electrical circuit steadily for one hour.

contact time

Natural environment; Water

The length of time a substance is in contact with a liquid, before it is removed by filtration or the occurrence of a chemical change.

groundwater law

Natural environment; Water

the common law doctrine of riparian rights and the doctrine of prior appropriation as applied to ground water.

non-aqueous phase liquid (NAPL)

Natural environment; Water

contaminants that remain undiluted as the original bulk liquid in the subsurface, such as spilled oil.

sedimentary cycle

Natural environment; Water

biogeochemical cycle in which materials primarily are moved from land to sea and back again.

weather

Natural environment; Water

day to day variation in atmospheric conditions. Compare climate.

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