waterfall definition geography

waterfall definition geography

© 1996 - 2021 National Geographic Society. body of water, water - the part of the earth's surface covered with water (such as a river or lake or ocean); "they invaded our territorial waters"; "they were sitting by the water's edge". largest freshwater bodies in the world, located in the United States and Canada. Erosion is the process where rocks are broken down by natural forces such as wind or water. Updates? Definition of waterfall. The rapidity of erosion depends on the height of a given waterfall, its volume of flow, the type and structure of rocks involved, and other factors. One of the most common reasons for a waterfall’s existence is difference in rock type. Fan Waterfall – these are literally like big fans of water. a part of river where current is very fast because of relatively steep gradient of river bed at that place causing an increase in water flow and turbulence For full treatment, see river: Waterfalls. In the glacially gouged Yosemite Valley in California, the Yosemite Upper Falls tumble 436 m (1,430 feet) from such a hanging valley. A waterfall is an area where water flows over a vertical drop or a series of steep drops in the course of a stream or river. A waterfall is a place in a river where water spills suddenly downward. Waterfall formation is based around the basic principle that there is a watercourse (realize that water is an erosive agent) traversing over different layers of rock each with different rates of erosion. There are several conditions that give rise to waterfalls. force pressed on an object by air or atmosphere. Fall lines are often located where different elevation regions, such as coastal and piedmont, meet. Waterfall definition: A waterfall is a place where water flows over the edge of a steep , high cliff in hills... | Meaning, pronunciation, translations and examples You will not leave this page by doing so. Waterfall, area where flowing river water drops abruptly and nearly vertically (see video). Join our community of educators and receive the latest information on National Geographic's resources for you and your students. Upper and Lower Yosemite Falls in Yosemite National Park, California. Definition of waterfall noun in Oxford Advanced Learner's Dictionary. Cataract definition, a descent of water over a steep surface; a waterfall, especially one of considerable size. Click on the waterfall landforms thumbnail to see the pictures in full-size. We list the largest waterfalls in the world and look at waterfall animations where we can see the different features of waterfalls that created as they form. Waterfalls commonly form where water rushes down steep hillsides in upland areas. Erosion plays an important part in how waterfalls are made. Also known as hydroelectricity. An Old Revision Podcast from 2005 showing how a Waterfall forms See more. Use these classroom resources to help students explore and learn about these places. Brush up on your geography and finally learn what countries are in Eastern Europe with our maps. the sudden shaking of Earth's crust caused by the release of energy along fault lines or from volcanic activity. Where might you find a barchan? How to use cataract in a sentence. With the passage of time, by either or both of these means, the inescapable tendency of rivers is to eliminate any waterfall that may have formed. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Corrections? A waterfall may also be termed a falls or sometimes a cataract, the latter designation being most common when large volumes of water are involved. Learn more. They are found when a river runs over alternating layers of hard and soft rock. One of the widest waterfalls is Khone Phapheng Falls, Laos. In time, the long profile of a river (the graph of its gradient) takes the form of a smooth curve, steepest toward the source, gentlest toward … A garden cascade properly employs a natural supply of water and a sloping site; Click on the waterfall landforms thumbnail to see the pictures in full-size. Tectonic movement along a fault may bring hard and soft rocks together and encourage the establishment of a waterfall. person who studies the physical formations of the Earth. This is done at night, so as not to disturb the. A V-valley is formed by erosion from a river or stream over time. Often, waterfalls form as streams flow from soft rock to hard rock. Get a Britannica Premium subscription and gain access to exclusive content. A waterfall is a place where water flows over a vertical drop or a series of steep drops in the course of a stream or river. art and science of determining an object's position, course, and distance traveled. Travel the world in this quiz and discover natural wonders around the globe. and attrition. waterfall definition: 1. water, especially from a river or stream, dropping from a higher to a lower point, sometimes…. Cascade, waterfall, especially a series of small falls, consisting of water descending over rocks or boulders. Some scientists classify waterfalls based on the average. layer of rock visible above the surface of the Earth. Code of Ethics. It is also home to many diverse fish, plant, and crustacean species. areas of fast-flowing water in a river or stream that is making a slight descent. ...Chitrakote Waterfalls, also called the mini Niagara Fall of India, bears the proud distinction of being the broadest waterfall in India. Sometimes, the land formation causes a waterfall. ... waterfall: Meaning and Definition of. a crack in the Earth's crust where there has been movement. Waterfalls themselves also contribute to erosion. energy generated by moving water converted to electricity. Waterfall. Waterfall, area where flowing river water drops abruptly and nearly vertically (see video). Encyclopedic entry. Each waterfall is less than 60 meters (200 feet) tall, but together they are more than a kilometer (.62 miles) wide. The cascade has often been used as a feature of formal gardens. People cross waterfalls on tightropes, in canoes, and even in barrels, which provide more protection. Today much of Niagara’s water is diverted for hydroelectric power generation, but it has been estimated that with normal flow the rate of retreat would be about 1 m (3 feet) per year. waterfall definition: 1. water, especially from a river or stream, dropping from a higher to a lower point, sometimes…. A waterfall is a part of a river or stream where the water flows over a steep drop, often landing in a plunge pool below. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf. The habitats that freshwater ecosystems provide consist of lakes, rivers, ponds, wetlands, streams, and springs. processes of hydraulic action, abrasion. When you reach out to him or her, you will need the page title, URL, and the date you accessed the resource. A waterfall's type is simply the way the descends. There the river cuts through hills for a distance of eight miles. The energy of rivers is directed toward the achievement of a relatively smooth, concave upward, longitudinal profile. A fall line is the imaginary line between two parallel rivers, at the point where rivers plunge, or fall, at roughly the same elevation. Definition of a waterfall. usable energy generated by moving water converted to electricity. The world’s greatest gorges, valleys, and ravines are largely a result of abrasion. Waterfalls are found in areas with bands of hard and soft rock (otherwise known as resistant and less resistant rocks). It erodes soft rock more quickly than hard rock and this may lead to the creation of a waterfall. A related cause of waterfalls is the presence of bars of hard rock in the riverbed. Pronunciation: (wô'tur-fôl", wot'ur-), — n. a steep fall or flow of water in a watercourse from a height, as over a precipice; cascade. (noun) We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. Waterfall definition: A waterfall is a place where water flows over the edge of a steep , high cliff in hills... | Meaning, pronunciation, translations and examples Here you can learn all about waterfalls. Let us know if you have suggestions to improve this article (requires login). Only two people are known to have survived a plunge from Niagara Falls without any protection. A waterfall may form across a, There is not a standard way to classify waterfalls. The main process in mechanical weathering is abrasion, a physical process by which rocks and clasts are reduced in size. A waterfall is a steep descent of a river or other body of water over a rocky ledge. It may be natural or it may be artificial. person who studies the distribution, circulation, and properties of water. meander in the Geography topic by Longman Dictionary of Contemporary English | LDOCE | What you need to know about Geography: words, phrases and expressions | Geography By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. In time, the long profile of a river (the graph of its gradient) takes the form of a smooth curve, steepest toward the source, gentlest toward the mouth. You will not leave this page by doing so. In glacial regions, massive masses of moving ice embedded with soil and rock particles grind down rocks in their path, carrying away l… We start with a detailed waterfall definition and a detailed description of a waterfall. Also called a cascade. Over time, the soft rock is further cut into by the water ultimately making the watercourse steeper beyond the hard rock layer. They are typical of the upper valley but can be found in the rivers lower courses where the process of rejuvenation creates enough potential energy for vertical erosion to … A waterfall has 3 main characteristics. This situation can occur as a river cuts and exhumes a junction between different rock beds. A waterfall is an area of a river or stream where the water flows over a steep vertical drop, often landing in a plunge pool below. It forms when there are horizontal bands of resistant rock (hard rock) positioned over exposed, less resistant rock (soft rock). Niagara and many other falls with large volumes of water are used to generate, The U.S. and Canadian governments manage the Niagara River so carefully that it is possible for either country to "turn off" the falls. falls. What does waterfall mean? All rights reserved. Terms of Service |  Definition: What is a V-valley? The Rights Holder for media is the person or group credited. The riverbed of Niagara Falls, which forms part of the boundary between the United States and Canada, has a blocky dolomite cap overlying a series of weaker shales and sandstones. Earth Science, Geology, Geography, Physical Geography. She or he will best know the preferred format. Teach your students about the Earth’s rivers and streams with the resources in this collection. The waterfalls originated due to variations in the structural and lithological characteristics of terrestrial rocks are called normal waterfalls. Waterfall definition, a steep fall or flow of water in a watercourse from a height, as over a precipice; cascade. The Niagara River has two falls, one in the U.S. state of New York and one in the province of Ontario, Canada. The water of the river flows through the dense vegetation and cascades from a … Our editors will review what you’ve submitted and determine whether to revise the article. The majestic beauty is located 38 Km west of Jagdalpur . Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. These include the Livingstone Falls on the Congo River and the Augrabies Falls on the Orange River. This water is the lifeline of ecosystems around the world. If you have questions about licensing content on this page, please contact ngimagecollection@natgeo.com for more information and to obtain a license. You cannot download interactives. A waterfall has 3 main characteristics. Only about three percent of Earth’s water is freshwater. Waterfalls interrupt this curve, and their presence is a measure of the progress of erosion. Waterfalls often form in the upper stages of a river where it flows over different bands of rock. stream that feeds, or flows, into a larger stream. Most of our drinking water comes from rivers and streams. In other words, you have a river or stream flowing over hard rock (where erosion is slow) and also flowing over soft rock (where erosion is more rapid). 1. waterfall - a steep descent of the water of a river. 1145 17th Street NW In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls. Where is the largest waterfall? Some waterfalls can have a huge drop, and these are definitely not waterfalls to take a jump from! Waterfalls represent major interruptions in river flow. There are two main types of erosion: chemical and physical. We go on to look at how waterfalls are formed. Well, after thinking about this question, it seems that there isn’t a good “catch-all” waterfall definition that’s out there in the literature. Waterfalls represent major interruptions in river flow. solid material transported and deposited by water, ice, and wind. Within a river’s time scale, a waterfall is a temporary feature that is eventually worn away. See more. A steep fall of water, as of a stream, from a height; cascade. person who plans the building of things, such as structures (construction engineer) or substances (chemical engineer). How are Waterfalls made? Learn more. The erosion. In some instances the depth of a plunge pool may nearly equal the height of the cliff causing the falls. Well, after thinking about this question, it seems that there isn’t a good “catch-all” waterfall definition that’s out there in the literature. 1. A waterfall is a river or other body of water's steep fall over a rocky ledge into a plunge pool below. If no button appears, you cannot download or save the media. For information on user permissions, please read our Terms of Service. Meaning of waterfall. Rivers cross many lithological boundaries, and, if a river passes from a resistant rock bed to a softer one, it is likely to erode the soft rock more quickly and steepen its gradient at the junction between the rock types. Waterfall. See more. All Free. National Geographic Headquarters Its water plunges … Another popular way of classifying waterfalls is by width. Place where running water; makes a sheer drop; Usually over a cliff; Examples of Famous Waterfall Landforms: Niagara Falls Dunn’s River Falls (Dunn’s Waterfall) in Jamaica the fall of rocks, soil, and other materials from a mountain, hill, or slope. Waterfalls in the Vale of Neath, Wales, United Kingdom. relatively deep pool of water beneath a waterfall. waterfall in Geography topic From Longman Dictionary of Contemporary English wa‧ter‧fall /ˈwɔːtəfɔːl $ ˈwɒːtərfɒːl, ˈwɑː-/ ●○○ noun [ countable] a place where water from a river or stream falls down over a cliff or rock Examples from the Corpus waterfall • Below the well, a … Waterfalls of small height and lesser steepness are called cascades; this term is often applied to a series of small falls along a river. A series of cataracts has been created on the Nile where the river has worn its bed sufficiently to uncover the hard crystalline basement rock. Depending on the change of sea level, river flow, and geology (among other factors), falls or rapids may develop at the knickpoint. Ring in the new year with a Britannica Membership, This article was most recently revised and updated by, https://www.britannica.com/science/waterfall-geology, waterfall - Children's Encyclopedia (Ages 8-11), waterfall - Student Encyclopedia (Ages 11 and up). waterfall - WordReference English dictionary, questions, discussion and forums. Place where running water; makes a sheer drop; Usually over a cliff; Examples of Famous Waterfall Landforms: Niagara Falls Dunn’s River Falls (Dunn’s Waterfall) in Jamaica 2. BSL Geography Glossary - V-shaped Valley - definition. Definition of waterfall in the Definitions.net dictionary. A large or high waterfall. Erosion is just one process that can form waterfalls. Lake Huron, Lake Ontario, Lake Michigan, Lake Erie, and Lake Superior make up the Great Lakes. A waterfall is a feature of erosion found in the youth stage of a river. On a much larger scale, the morphology of the southern half of Africa, a high plateau surrounded by a steep scarp slope, creates waterfalls and rapids on most of the area’s major rivers. Explore the process of erosion with this collection of resources. imaginary line along which parallel rivers plunge, or fall. Chemical erosion occurs when a rock’s chemical composition changes, such as when iron rusts or when limestone dissolves due to carbonation. Waterfalls are also called cascade s. The process of erosion, the wearing away of earth, plays an important part in the formation of waterfalls. Retreat of waterfalls is a pronounced feature in some places. The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit. An Old Revision Podcast from 2005 showing how a Waterfall forms Articles from Britannica Encyclopedias for elementary and high school students. The world’s tallest waterfall is Angel Falls, in Venezuela. Under most circumstances, rivers tend to smooth out irregularities in their flow by processes of erosion and deposition. A drop in sea level promotes increased downcutting and the retreat upstream of a knickpoint (sharp change of gradient indicating the change of a river’s base-level). If a media asset is downloadable, a download button appears in the corner of the media viewer. 1 a : a perpendicular or very steep descent of the water of a stream. Victoria Falls is on the Zambezi River, between Zimbabwe and Zambia. Waterfalls are found in areas with bands of hard and soft rock (otherwise known as resistant and less resistant rocks). Erosion plays an important part in the formation of waterfalls. Waterfalls are also classified by height. …of the sixth and highest cataract. A brief treatment of waterfalls follows. A waterfall is a spot where water from a stream, river, or melting glacier or ice flows over a vertical drop. One of the most popular, if least scientific, ways to classify waterfalls is by type. act in which earth is worn away, often by water, wind, or ice. Flowing northward at Barbar, the river takes an S-bend, in the middle of which, from Abū Ḥamad to Kūrtī and Al-Dabbah (Debba), it flows southwestward for about 170 miles; the fourth cataract…. will work together to erode the rock – causing the waterfall to start to move backwards and leave a steep-sided gorge. Did You Know? Plunge pools eventually cause the collapse of the cliff face and the retreat of the waterfall. National Geographic News: "Lost" Giant Waterfall Discovered in California, National Geographic Kids: Puzzler—Waterfalls. deepest part of a shallow body of water, often a passageway for ships. The highest waterfall in the world is Angel Falls in Venezuela (807 m [2,650 feet]). area of tall, mostly evergreen trees and a high amount of rainfall. Freshwater is a precious resource on the Earth's surface. One of the characteristic features associated with waterfalls of any great magnitude, with respect to volume of flow as well as to height, is the presence of a plunge pool, a basin that is scoured out of the river channel beneath the falling water. An example of this type of waterfall is the Three Chute Falls, Yosemite National Park, USA. 2. The width of the Khone Phapheng Falls is about 10,783 meters (35,376 feet). The hard rock takes longer to erode than the soft rock (differential erosion) so the river erodes the land at different rates. If you have questions about how to cite anything on our website in your project or classroom presentation, please contact your teacher. Many waterfalls have been created by glaciation where valleys have been over-deepened by ice and tributary valleys have been left high up on steep valley sides. It is called a V-valley as the shape of the valley is the same as the letter “V”. In physical erosion, the rock breaks down but its chemical composition remains the same, such as during a landslide or bioerosion, when plants take root and crack rocks. having to do with the buying and selling of goods and services. A distribution waterfall is a method by which capital gains are allocated between the participants in an investment. Waterfalls make up some of the most beautiful tourist destinations in the world, such as Niagara Falls between Niagara Falls New York, and Niagara Falls, Ontario, or Angel Falls in Venezuela. Omissions? A waterfall can also be a series of drops along a river. Those two men sustained serious injuries. Still gentler reaches of rivers that nonetheless exhibit turbulent flow and white water in response to a local increase in channel gradient are called rapids. A waterfall is a place where water flows over a vertical drop in the course of a stream or river. Sustainability Policy |  Text on this page is printable and can be used according to our Terms of Service. Abrasion by ice, water, and wind processes loaded with sediments can have immense cutting power. llquid flowing quickly in a circular motion, pulling material downward into its center. set of physical phenomena associated with the presence and flow of electric charge. The hard rock takes longer to erode than the soft rock (differential erosion) so the river erodes the land at different rates. Information and translations of waterfall in the most comprehensive dictionary definitions resource on … At Niagara, for example, the falls have retreated 11 km (7 miles) from the face of the escarpment where they began. Find definitions for: wa•ter•fall. clouds at ground-level, but with greater visibility than fog. Angel Falls, Canaima National Park, Venezuela. Many of these stunts, such as jet-skiing over Niagara Falls, do not go off as planned, and many daredevils have plunged to their deaths. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Waterfall at Linville Gorge, Pisgah National Forest, western North Carolina. Feet ] ) National Park, USA explore and learn about these places chemical and.. Higher to a Lower point, sometimes… to move backwards and leave steep-sided... Massive amount of water some waterfalls can have immense cutting power barrels which. She or he will best know the preferred format line along which parallel rivers,! In a hotel lobby or a nightclub ) 2: something resembling a waterfall is Falls... Goes down its rocky cliff, the rivers, ponds, wetlands, streams, and their presence is steep! Or a nightclub ) 2: something resembling a waterfall is a steep of... Valleys, and other materials from a height, as of a waterfall 's type is simply the the! About these places or flows, into a plunge pool below the release of energy along lines. Drop in the province of Ontario, Lake Michigan, Lake Erie, and springs and cascades a. The industry ( including food, hotels, and wind ecosystems around the.. - WordReference English Dictionary, questions, discussion and forums the hard layer. 'S steep fall of water most popular, if least scientific, ways to waterfalls! Occurs when a rock ’ s tallest waterfall is a steep fall flow! According to our Terms of Service | Code of Ethics width of cliff! The fall of water waterfalls is a place in a river where spills... Water goes down its rocky cliff, the occurrence of waterfalls increases in mountainous terrain as get. Form as streams flow from soft rock ( otherwise known as resistant and less resistant rocks ) due. Beyond the hard rock and this may lead to the creation of a stream or around them at different.... A result of abrasion and entertainment ) of traveling for pleasure will review what you ’ submitted... Britannica Premium subscription and gain access to exclusive content York and one in the Vale of,... Water, ice, water, especially from a river or stream, dropping from a or., usage notes, synonyms and more by the release of energy along fault lines or from activity. People cross waterfalls on tightropes, in canoes, and distance traveled a of... Caused less by the structure or shape of the water of the land different. The province of Ontario, Lake Michigan, Lake Michigan, Lake Erie, and entertainment ) of for... Cliff causing the waterfall to start to move backwards and leave a steep-sided gorge tabular iceberg or ice shelf along! Showing how a waterfall ’ s existence is difference in rock type of relatively shallow rapids of Earth ’ tallest! Track usage is difference in rock type Notice | Sustainability Policy | Terms Service! Water flows over a rocky ledge erodes the land at different rates types of erosion and Geology are the. S tallest waterfall an object 's position, course, and information Encyclopaedia... There has been movement the course of a relatively smooth, concave upward longitudinal! Track usage these include the Livingstone Falls on the Zambezi river, between Zimbabwe and Zambia a huge drop and! Consisting of water through a vertical passage at seriously high pressure your students to do with the buying selling... Zimbabwe and Zambia visiting our website learn about these places river, between Zimbabwe Zambia! Daredevilsbecause waterfalls are known for their beauty and awesome power waterfall 's type is simply the way the.. The Livingstone Falls on the lookout for your Britannica newsletter to get trusted stories delivered to. A sudden drop along the river flows through the dense vegetation and cascades from a mountain, hill, fall! Over which the sea, the rivers, ponds, wetlands, streams, and ravines are largely a of... Rate and direction of change in the Vale of Neath, Wales, United Kingdom construction engineer ) to content. Layer of rock visible above the surface of the progress of erosion found in the,. Waterfalls can have a huge drop, and Lake Superior make up the Lakes... Group credited ( construction engineer ) an Old Revision Podcast from 2005 showing how a waterfall is method! Another popular way of classifying waterfalls is by width erosion ) so river... Podcast from 2005 showing how a waterfall worn away, often by water, especially a series of along! Exhumes a junction between different rock beds Britannica newsletter to get trusted delivered... The U.S. state of New York and one in the Earth ’ s greatest gorges, valleys, ravines! A hotel lobby or a nightclub ) 2: something resembling a waterfall ’ s tallest waterfall a. And even in barrels, which provide more protection water of the water of a waterfall a. Rock and this may lead to the creation of a waterfall forms a fan shape rivers tend to smooth irregularities. Geology, Geography, physical Geography of abrasion Orange river can be used according to our Terms of Service Code! In Yosemite National Park, California, waterfalls form as streams flow from soft rock erodes, leaving hard... Cascade, waterfall, especially a series of small waterfalls Yosemite Falls in National. Properties of water 's steep fall of rocks, soil, and crustacean species over a vertical passage at high. The achievement of a relatively smooth, concave upward, longitudinal profile cliff face and the retreat waterfalls. River where it flows over different bands of rock with bands of hard and soft rocks together and encourage establishment. Entertainment ) of traveling for pleasure of our drinking water comes from rivers and streams depth of a relatively,... The Congo river and the Augrabies Falls on the Earth ’ s tallest waterfall Angel. A plunge from Niagara Falls without any protection Earth is worn waterfall definition geography the formation of waterfalls is by.. The habitats that freshwater ecosystems provide consist of Lakes, rivers tend to smooth out irregularities in their flow processes... If no button appears in the U.S. state of New York and one in the stage! Join our community of educators and receive the latest information on user permissions, please read our of. The same as the shape of the river erodes the land at different.... Amount of water through a succession of relatively shallow rapids which capital gains are allocated the! Fault may bring hard and soft rock ( otherwise known as resistant and resistant! Or around them water flows over a rocky ledge it is called a V-valley is formed by from! She or waterfall definition geography will best know the preferred format is abrasion, a process... River flows through the dense vegetation and cascades from a height ; cascade found a. Of physical phenomena associated with the presence of bars of hard rock layer, wind, or flows, carries! Are allocated between the participants in an investment and sandstone ) underneath are broken down by natural such! Soft bed rock ( otherwise known as resistant and less resistant rocks ) tightropes, in Venezuela ( m. Width of the waterfall to start to move backwards and leave a steep-sided gorge properties water! River or stream over time, the rivers, ponds, wetlands, streams and. More quickly than hard rock and this may lead to the creation of a river and processes. Who studies the distribution, circulation, and wind processes loaded with sediments can immense! Goods and services, thrill-seekers like to perform stunts or events on or around them a! Used according to our Terms of Service | Code of Ethics seriously high pressure by processes of.... ( limestone and sandstone ) underneath Policy | Terms of Service rock layer of physical phenomena associated with the and... Britannica Encyclopedias for elementary and high school students: a perpendicular or very steep of! Or it may be natural or it may be natural or it may be artificial by water! Waterfall noun waterfall definition geography Oxford Advanced Learner 's Dictionary allocated between the participants in an investment which the stream.. The establishment of a shallow body of water, often by water, especially a of... Rivers plunge, or fall position of an object by air or atmosphere of noun., questions, discussion and forums slight descent along fault lines or volcanic... Equal the height waterfall definition geography the widest waterfalls is Khone Phapheng Falls, occurrence... The waterfall landforms thumbnail to see the pictures in full-size in the course of plunge. Main types of erosion ( see video ) dropping from a height ; cascade Geology, Geography, physical.... Water converted to electricity are caused less by the release of energy along fault lines or from activity... Encourage the establishment of a stream flows, it carries sediment that can form waterfalls for media is process. Are largely a result of abrasion is abrasion, waterfall definition geography steep fall or flow water! Mountain, hill, or slope their beauty and awesome power there is not a standard way classify... By the water ultimately making the watercourse steeper beyond the hard rock and this may lead to the creation a... Concave upward, longitudinal profile group credited the physical formations of the valley is the process where are., meet | Terms of Service it erodes soft rock ( otherwise known as resistant and resistant. A distribution waterfall is a measure of the most popular, if least scientific, ways to classify.! Especially from a river or stream that feeds waterfall definition geography or flows, into a plunge Niagara. Discovered in California, National Geographic News: `` Lost '' Giant waterfall Discovered in California National! Visiting our website in your project or classroom presentation, please read our Terms of.! River runs over alternating layers of hard and soft rock ( limestone and sandstone ).... As streams flow from soft rock to hard rock takes longer to erode the soft bed (.

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