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a deep, broad trench, either dry or filled with water, surrounding and protecting a structure, installation, or town. Mud puddle: Nant: Stream: Wales. [33] Ocean: a major body of salty water that, in totality, covers about 71% of the Earth's surface. Oxbow lake: a U-shaped lake formed when a wide meander from the mainstem of a river is cut off ...
A puddle is a small accumulation of liquid, usually water, on a surface. [1] It can form either by pooling in a depression on the surface, or by surface tension upon a flat surface. Puddles are often characterized by murky water or mud due to the disturbance and dissolving of surrounding sediment, primarily due to precipitation .
The technical distinction between a pond and a lake has not been universally standardized. Limnologists and freshwater biologists have proposed formal definitions for pond, in part to include 'bodies of water where light penetrates to the bottom of the waterbody', 'bodies of water shallow enough for rooted water plants to grow throughout', and 'bodies of water which lack wave action on the ...
Plunge pools are often very deep, generally related to the height of the fall, the volume of water, the resistance of the rock below the pool and other factors. [4] The impacting and swirling water, sometimes carrying rocks within it, abrades the riverbed into a basin, which often features rough and irregular sides. Plunge pools can remain long ...
A puddle is a small accumulation of liquid on a surface. Puddle or Puddles may also refer to: Puddle, Cornwall, hamlet in England; Puddle; Puddle (M. C. Escher), a woodcut by M. C. Escher; Weld puddle, a crucial part of the welding process; In rowing, an oval patch of disturbed water indicative of rowing skill; Puddle clay, a type of waterproof ...
Puddle has to be kept wet in order to remain waterproof so it is important for canals to be kept filled with water. The clay is laid down with a tool called a 'punner', or 'pun', a large rectangular block on a handle about 5 feet (1.5 m) long, or trodden down, or compacted by some other means (e.g. by an excavator using the convex outside of ...
None of these definitions completely excludes ponds and all are difficult to measure. For this reason, simple size-based definitions are increasingly used to separate ponds and lakes. Definitions for lake range in minimum sizes for a body of water from 2 hectares (5 acres) [5]: 331 [6] to 8 hectares (20 acres). [7]
Deep sea brine pools have also been a large interest in bioprospecting in the hope that unlikely environments might serve as sources of biomedical breakthroughs due to unexplored biodiversity. Some areas have been found to host antibacterial and anticancer activities in biosynthetic clusters. [ 74 ]