A tributary does not flow directly into a sea. Tributaries and the mainstem river serve to drain the surrounding drainage basin of its surface water and groundwater by leading the water out into an ocean or some other large body of water. A confluence is where two or more bodies of water meet together, usually referring to the action of tributaries.
A parallel to tributaries is the distributary, a river that branches off of and flows away from the main stream. SOURCE The source or headwaters of a river or stream is the place from which the water in the river or stream originates.
By another definition a source can be defined specifically as the most distant point from the river mouth in the drainage basin from which water runs year-around perennially, or, alternatively, as the furthest point from which water could possibly flow ephemerally.
As the river wanders between banks that are far apart, the promontories of the hills tend to jut out into the river valley in a staggered formation, interlocked together in a formation like the teeth of a zip.
These promontories are referred to as interlocking spurs. While similar in general appearance, the mechanism behind the formation of interlocking spurs is different to that behind meandering and they should not be confused.
If the valley experiences glaciation, the interlocking spurs are foreshortened as the tips are sheared off. These are referred to as truncated spurs. How interlocking spurs are formed: Vertical erosion creates a narrow valley.
They line up one after the other. A meander is formed when the moving water in a river erodes the outer banks and widens its valley. A stream of any volume may assume a meandering course, alternatively eroding sediments from the outside of a bend and depositing them on the inside. The result is a snaking pattern as the stream meanders back and forth across its down-valley axis.
When a meander gets cut off from the main stream, an oxbow lake is formed. Over time meanders migrate downstream, sometimes in such a short time as to create civil engineering problems for local municipalities attempting to maintain stable roads and bridges. There is not yet full consistency or standardization of scientific terminology used to describe watercourses. A variety of symbols and schemes exist.
Parameters based on mathematical formulae or numerical data vary as well, depending on the database used by the theorist. Unless otherwise defined in a specific scheme "meandering" and "sinuosity" here are synonymous and mean any repetitious pattern of bends, or waveforms. In some schemes, "meandering" applies only to rivers with exaggerated circular loops or secondary meanders; that is, meanders on meanders.
Sinuosity is one of the channel types that a stream may assume over all or part of its course. Other animals such as bears catch fish from rivers. River deltas have many different species of wildlife. Insects, mammals and birds use the delta for their homes and for food. River valleys and plains provide fertile soils. Farmers in dry regions irrigate their cropland using water carried by irrigation ditches from nearby rivers.
Rivers are an important energy source. During the early industrial era, mills, shops, and factories were built near fast-flowing rivers where water could be used to power machines. Today steep rivers are still used to power hydroelectric plants and their water turbines.
Rivers A river is freshwater flowing across the surface of the land, usually to the sea. The River Channel. Rivers flow in channels. A river grows larger as it collects water from more tributaries along its The great majority of rivers eventually flow into a larger body of water.
Rivers carry water and nutrients to areas all around the earth. They play a very important part in the water cycle, acting as drainage channels for surface water. Rivers drain nearly 75% of the earth's land surface. Rivers provide excellent habitat and food for many of the earth's organisms. Many.
Fascinating facts, did-you-knows, picture galleries, videos, games and more all about rivers, for primary school geography topic work. Nov 25, · I need to write a sentence to explain each of the following terms associated with rivers: Tributary, source,interlocking spurs,meander,flood plain and estuary can i get some help Status: Resolved.
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