Water

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.

Industry: Natural environment

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Water

point-source pollution

Natural environment; Water

water pollution coming from a single point, such as a sewage-outflow pipe.

sustained overdraft

Natural environment; Water

Long term withdrawal from the aquifer of more water than is being recharged.

attrition

Natural environment; Water

The action of one particle rubbing against the other in a filter media or ion exchange bed that can in time cause breakdown of the particles.

effective porosity

Natural environment; Water

the portion of pore space in saturated permeable material where the movement of water takes place.

intermittent stream

Natural environment; Water

one that flows periodically. Compare perennial stream.

porosity

Natural environment; Water

a measure of the water-bearing capacity of subsurface rock. With respect to water movement, it is not just the total magnitude of porosity that is important, but the size of the voids and the extent ...