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2. Sink - Wikipedia

   en.wikipedia.org/wiki/Sink

   Sink. A sink is a bowl-shaped plumbing fixture for washing hands (also known as washbasin in the UK), dishwashing, and other purposes. Sinks have a tap (faucet) that supplies hot and cold water and may include a spray feature to be used for faster rinsing. They also include a drain to remove used water; this drain may itself include a strainer ...

3. Washstand - Wikipedia

   en.wikipedia.org/wiki/Washstand

   Washstand. A washstand or basin stand is a piece of furniture consisting of a small table or cabinet, usually supported on three or four legs, and most commonly made of mahogany, walnut, or rosewood, and made for holding a wash basin and water pitcher. The smaller varieties were used for rose-water ablutions, or for hair-powdering.

4. Source–sink dynamics - Wikipedia

   en.wikipedia.org/wiki/Source–sink_dynamics

   Source–sink dynamics is a theoretical model used by ecologists to describe how variation in habitat quality may affect the population growth or decline of organisms. Since quality is likely to vary among patches of habitat, it is important to consider how a low quality patch might affect a population. In this model, organisms occupy two ...

5. Plumbing fixture - Wikipedia

   en.wikipedia.org/wiki/Plumbing_fixture

   In some occasional cases, a sink may have both a potable (drinkable) and a non-potable water supply. Lavatories and water closets normally connect to the water supply by means of a supply , which is a tube, usually of nominal 3/8 in ( United States ) or 10 or 12 mm diameter ( Europe and Middle East ), which connects the water supply to the ...

6. Streeter–Phelps equation - Wikipedia

   en.wikipedia.org/wiki/Streeter–Phelps_equation

   The simple Streeter–Phelps model is based on the assumptions that a single BOD input is distributed evenly at the cross section of a stream or river and that it moves as plug flow with no mixing in the river. [8] Furthermore, only one DO sink (carbonaceous BOD) and one DO source (reaeration) is considered in the classical Streeter–Phelps ...

7. Drainage basin - Wikipedia

   en.wikipedia.org/wiki/Drainage_basin

   A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the drainage divide, [1] made up of a succession of elevated features, such as ridges and hills.