field wiki:
d may refer to:A field is an open land area, used for growing agricultural crops.Playing field, in sports, the area in which the sport is playedField (mathematics), one of a class of objects studied in abstract algebra, in which one can add, subtract, multiply, and divideField (physics), an assignment of a quantity to every point of spaceField (computer science), a smaller piece of data from a larger collection (eg, database fields)Depth of field, in photography, the distance to the subject of the photographField (sculpture), a sculpture by Anthony GormleyField (video), one half of a frame in an interlaced displayField (heraldry), the background of a shieldField (flag terminology), the background of a flagField Gallery, A gallery that was part of the Portland millennial art renaissanceField and Stream
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river wiki:
>For the Second World War frigate class, see River class frigate. For the state of Nigeria, see Rivers State. A river is a large natural waterway. It is a specific term in the vernacular for large streams, stream being the umbrella term used in the scientific community for all flowing natural waterways. In the vernacular, stream may be used to refer to smaller streams, as may creek, run, fork, etc.Passage via a river or stream is the usual way rainfall on land finds its way to the ocean or other large body of water such as a lake. A river consists of several basic parts, originating from headwaters or a spring at the source, that flow into the main stream. Smaller side streams that join the river are tributaries. Water flow is normally confined to a channel, with a bottom or bed between banks. The lower end of a river is its base level, commonly called its mouth, a river typically widens at its end and forms what is known as a river delta or estuary.
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