A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea or another river. A river is a natural watercourse that flows towards an ocean, lake, sea or another river. Rivers are often used as a source of drinking water and are also important for irrigation and transportation. They can be used to generate hydroelectric power too. Rivers flow downhill due to gravity. They start at the top of hills and then gradually get closer to the bottom of the hill until they reach the lowest point on the hill which is called the "confluence". The confluence is where two rivers meet together and create one new river that continues downstream.

What are the different types of water sources that feed a river?

There are three different types of water sources that feed a river. The first is rainwater, which falls from the sky and collects in rivers and streams. The second is groundwater, which seeps into the ground and then travels underground until it reaches a river or stream. The third type of water source is snowmelt, which occurs when snow on mountains melts during springtime.

What does the term "riparian zone" refer to?

The term "riparian zone" refers to the area of land that is next to a river. The riparian zone can be either on the banks of the river or adjacent to it. The term is also used in reference to an area that is next to any body of water, such as a lake or ocean. The riparian zone provides many benefits for humans and animals alike. For example, this zone acts as a natural filter for pollutants in rivers and streams by trapping sediment and other materials from entering into the waterway. It also provides habitat for plants and animals, including some endangered species like freshwater mussels, birds, amphibians, reptiles, fish and mammals. Riparian zones are important because they help maintain healthy water quality in rivers and streams while providing habitat for plants and animals.

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Image Categories > River Images > River

River Stock Vectors, Clipart and Illustrations

250,192 matches

Water cycleFREE

Illustration of a cartoon summer or spring country river going to green cityscape, for environment and ecology backgroundFREE

Mountain landscape with river and forest Stock Photo

Mountain landscape with river and forestFREE

Green landscape with meadow, blue lake and mountains on a cloudy sky backgroundFREE

Mountain river or stream logo, vector icon illustration.FREE

River icon vector illustration design templateFREE

Winding road isolated transparent special effect. road way location infographic template.FREE

Illustration of a river and a boat in a beautiful natureFREE

A natural pond on white background illustration Vector Illustration

A natural pond on white background illustrationFREE

City map new orleans, monochrome detailed plan, vector illustrationFREE

River creek logo vector icon illustrationFREE

Water pollution make dead fish, vector artFREE

Nile in the desert under the sun. egyptian pyramidsFREE

New orleans vector map, artprint. black landmass, white water and roads.FREE

Nordic landscape. coniferous forest on the coast of a lake or river. vector template for logo, t-shirt print and other designsFREE

Vector map of the amazon river drainage basin Vector Illustration

Vector map of the amazon river drainage basinFREE

Beautiful natural landscape, mountains, river. vector 2d illustration Vector Illustration

Beautiful natural landscape, mountains, river. vector 2d illustrationFREE

Winding road isolated transparent special effect. road way location infographic template. Vector Illustration

Winding road isolated transparent special effect. road way location infographic template.FREE

Modern night city skyline, vector cityscapeFREE

Set of monochrome landscapes in geometric shapes circle, triangle, rhombus. natural sceneries with wild pine forests. flat vector for company or campingFREE

Tree roots river stock vector illustration Vector Illustration

Tree roots river stock vector illustrationFREE

Deep affluent fertile river nile, map of upper and lower egypt, northern africa, eastern mediterranean.FREE

Nature pollution set. garbage and trash, danger for ecology. turtle swimming in the sea between waste. bags and bottles, plastic rubbish. vector illustration in cartoon styleFREE

New york state (nys), political map, with capital albany, borders, important cities, rivers and lakes. state in the northeastern united states of america. english labeling. illustration. vector.FREE

Nature pollution. garbage and trash on the beach, danger for ecology. sea waste. bags and bottles, plastic rubbish. vector illustration in cartoon styleFREE

Rushing river waterfalls Vector Illustration

Rushing river waterfallsFREE

Little children cleaning the beachFREE

Set of monochrome landscapes in geometric shapes circle, triangle, rhombus. natural sceneries with wild pine forests. Vector Illustration

Set of monochrome landscapes in geometric shapes circle, triangle, rhombus. natural sceneries with wild pine forests.FREE

Flowing river top view. vector seamless border with nature landscape with blue water stream, green grass, trees and rocks. illustration of summer scene with brook flow with sand shoreFREE

River systems and drainage basin educational structure vector illustration. geological description with water flow from source to sea. labeled scheme with levee, confluence, tributary, delta and oxbowFREE

Vector flat cartoon camping illustrationFREE

Mountain river flow near the spruce forest with bushes along the shores, nature concept landscape illustration on white backgroundFREE

New jersey, nj, political map with capital trenton. state in the mid-atlantic region of northeastern united states of america. the garden state. most densely populated us state. illustration. vector.FREE

Creeks and mountain view logo designs with evergreen/ fir/pine trees.FREE

Landscape of swamp in the night Vector Illustration

Landscape of swamp in the nightFREE

Biblical vector illustration series, jesus baptised by john the baptistFREE

Reeds in the water and few dragonfliesFREE

Sources of water pollution as freshwater contamination causes. labeled educational nature ecosystem waste and clean groundwater ruining with industrial agriculture and cities vector illustration.FREE

Litter in the park illustration Vector Illustration

Litter in the park illustrationFREE

Lonely canoeing adventure with red boat forest landscape vector illustration eps10 Vector Illustration

Lonely canoeing adventure with red boat forest landscape vector illustration eps10FREE

Vector map of the city of new orleans, louisiana, usaFREE

River icon setFREE

Icon set featuring mountains, water, and treesFREE

R river logoFREE

Summer landscapeFREE

Mountains and valleyFREE

The beautiful running water in forest riverFREE

Autumn lake in north mountain Stock Photo

Autumn lake in north mountainFREE

Frosen river in the ice aerial view vector illustration abstract backgroundFREE

Drainage basins vector illustration. labeled educational rain water scheme. geological precipitation collection structure with spring, tributary, main river channel, divide and confluence examples.FREE

Cityscape of embankment and bridge across neva river in st. petersburg, russia. view on spit of vasilievsky island and rostral columns. isolated vector hand drawing illustration in black color on white backgroundFREE

Road map and journey route infographics template. winding road timeline illustration. flat vector illustrationFREE

Water natural is stored underground in crevice or accumulate in the gap between gravel pits. Vector Illustration

Water natural is stored underground in crevice or accumulate in the gap between gravel pits.FREE

River cartoons in the middle beautiful natural sceneryFREE

Map of mississippi river drainage basin. simple thin outline vector illustration. Vector Illustration

Map of mississippi river drainage basin. simple thin outline vector illustration.FREE

It is a beautiful landscape of peaceful forest with sunlight.FREE

A vector illustration of a group of happy people rafting on river Vector Illustration

A vector illustration of a group of happy people rafting on riverFREE

Collection of marine waves. sea wavy, ocean art water design. vector illustrationFREE

Mountain landscape with riverFREE

Illustration of a spring or summer cartoon landscape, of river leading to the ocean Vector Illustration

Illustration of a spring or summer cartoon landscape, of river leading to the oceanFREE

Lake in jungle rainforestFREE

Symbol of a winding river with grass and tree.FREE

A beautiful view of a quiet river flowing through a valleyFREE

Illustration of a river and a beautiful landscapeFREE

Landscape constructor icons set. buildings houses, trees and architecture signs for map, game, texture, mountains, river, sun. design element isolated on white.tree vector,road elements,city elementsFREE

Stylized illustration showing a river and mountain landscapeFREE

Vector landscape with green grass, forest and blue river on a sky background Vector Illustration

Vector landscape with green grass, forest and blue river on a sky backgroundFREE

Illustration background of a map village with housesFREE

Adventure pine tree creek nature river logo vector designFREE

Illustration of parent and child fishingFREE

Nature landscape, river, vector background Vector Illustration

Nature landscape, river, vector backgroundFREE

Splash round wave on white background Vector Illustration

Splash round wave on white backgroundFREE

Blue river flowing down stream across a stones. isolated on white background. vector illustration.FREE

Summer landscape with green forest, river and mountains on a blue cloudy sky Vector Illustration

Summer landscape with green forest, river and mountains on a blue cloudy skyFREE

Seamless pattern with blue sea waves Vector Illustration

Seamless pattern with blue sea wavesFREE

Sea watercolor water blue background Vector Illustration

Sea watercolor water blue backgroundFREE

Young people remove garbage, plastic in nature near the river. volunteers and ecologists clean the environment from waste. flat vector illustrationFREE

City floods and cars with garbage floating in the water concept illustration.FREE

Layer paper cut deep style idea of landscape in forest river. vector illustration. landscape design on paper art. creative origami natural aerial vector summer park cut styling landscape. top view water stream surrounded by forest grass.FREE

Vector map of the city of new orleans, louisiana, usa Vector Illustration

Vector map of the city of new orleans, louisiana, usaFREE

Watercolor sea waves.FREE

Stork on river bank in reeds flat design cartoon vector wild animals birds. flat zoo nature children collection.FREE

Light reflection of moonlight in wavy ocean water and stars in dark sky.FREE

Abstract nature drawings in minimalistic japanese style. vector illustrationFREE

Vector landscape with mountains, green trees and blue lake on a sky backgroundFREE

European or wels catfish. vector illustration isolated on white backgroundFREE

Abstract collection of sun and sea icons Vector Illustration

Abstract collection of sun and sea iconsFREE

Olive tree logo designs with creeks or rivers symbolFREE

Mountain landscape with river at night. black and white ink drawing, stylized hand drawn sketch. vector illustration. Vector Illustration

Mountain landscape with river at night. black and white ink drawing, stylized hand drawn sketch. vector illustration.FREE

Set of canoe and kayak club badges vector. concept for patch, shirt, print or tee. vintage design with mountain, river, american indian and kayaker silhouette. extreme water sport kayak patchesFREE

Nature cleanup flat composition with volunteers picking up litter bottles plastic packaging trash near pond vector illustrationFREE

Vineyars in douro valley, portugal Stock Photo

Vineyars in douro valley, portugalFREE

Minimalistic rome city map poster design.FREE

Wave pattern, vector illustration, seamless pattern, abstract blue backgroundFREE

Sea garbage in polluted water. dirty ocean beach with trash and plastic on sand and under water surface vector illustration conceptFREE

River logo template vector icon illustration designFREE

Vector evening in beautiful mountains forest with riverFREE

Abstract landscape illustration. mountains, sun, moon, sunset, desert, hills minimalist design. trendy mid century art, boho home decor, wall art. Vector Illustration

Abstract landscape illustration. mountains, sun, moon, sunset, desert, hills minimalist design. trendy mid century art, boho home decor, wall art.FREE

Graceful lotus pond and golden cloud with blank white space for greeting words Vector Illustration

Graceful lotus pond and golden cloud with blank white space for greeting wordsFREE