that part of the mouth or lower course of a river in which the current river meets the tide

Full Answer

What is formed at the mouth of a river called?

In the course of time, the silt thus deposited forms a triangular island at the mouth of the river. This is known as delta. When the tidal waves and sea currents constantly wash the river mouth a delta cannot be formed. Such a free mouth of a river is called an estuary.

What is the lower course of a river called?

The Lower or Deltaic Course. 1. The Upper Course: In the mountainous course, a river passes through a steep slope. Its water, therefore, rushes down with great speed. Under such a condition the water can dig the river bed very deeply and carries or pools down heavy boulders and pebbles.

What is the middle course of a river?

The Middle Course: As a river leaves the hilly area and enters into a plain, its middle course starts. The slope of the river bed is less on a plain. Hence, the speed of the current is also less, compared to the upper course. The river is fed by many tributaries and its volume of water increases.

What is a free mouth of a river called?

Such a free mouth of a river is called an estuary. Majuli, the river island and Sundarban (1,25,00 sq km) the delta of the Brahmaputra and the Ganges are world famous. The deltas of the Nile, Mississippi, Volga, Po and Yangstze kiang are some of the world famous depositional features at the mouth of the river.

What do we call the area at the mouth of a river where its current meets the ocean?

An estuary is an area where a freshwater river or stream meets the ocean.

What is the mouth of the river called?

deltaThe end of a river is its mouth, or delta. At a river's delta, the land flattens out and the water loses speed, spreading into a fan shape. Usually this happens when the river meets an ocean, lake, or wetland.

What is a tidal mouth?

We found 1 solutions for Tidal Mouth Of A River . The most likely answer for the clue is ESTUARY.

What is the name for the mouth of a river where it meets the ocean and the water is saltwater mixed with freshwater?

estuaryBut the mixing of freshwater streams and rivers with salty ocean tides in a partly enclosed body of water—natural scientists call it an estuary—fuels some of the most productive ecosystems on Earth, and also some of the most vulnerable.

What is called tributary?

A tributary is a freshwater stream that feeds into a larger stream or river. The larger, or parent, river is called the mainstem. The point where a tributary meets the mainstem is called the confluence. Tributaries, also called affluents, do not flow directly into the ocean.

What is source and mouth of a river?

The source is where a river begins, and the river mouth is where it joins the sea. The mouth may be in the form of a river delta. The joining of a streams is called a confluence.

What are the title mouth of a large river where the tide meets the stream?

Estuaries. Summary: A Estuary is the tidal mouth of a large river, where the tide meets the stream. A habitat in which the fresh water of a river meets the salt water of the ocean.

What is river ESTUARY?

An estuary is a partially enclosed, coastal water body where freshwater from rivers and streams mixes with salt water from the ocean. Estuaries, and their surrounding lands, are places of transition from land to sea.

What is a tidal bore wave?

A tidal bore occurs along a coast where a river empties into an ocean or sea. A tidal bore is a strong tide that pushes up the river, against the current. A tidal bore is a true tidal wave. A tidal bore is a surge. A surge is a sudden change in depth.

Where does the ocean and river meet?

estuaryWhere a river meets the ocean is called an estuary. It is a transition area, the boundary between riverbanks and the open ocean where salt and freshwater mix together.

What do you call the area where seawater and the fresh water meet and said to be the home for various kinds of animals?

Estuaries and their surrounding wetlands are bodies of water usually found where rivers meet the sea. Estuaries are home to unique plant and animal communities that have adapted to brackish water—a mixture of fresh water draining from the land and salty seawater.

Why is it called an estuary?

The term estuary is derived from the Latin words aestus (“the tide”) and aestuo (“boil”), indicating the effect generated when tidal flow and river flow meet. Estuaries are places where rivers meet the sea and may be defined as areas where salt water is measurably diluted with fresh water.

What is the last part of a river near its mouth called?

The last part of a river near its mouth is called the lower course. In this part the slope of the river bed is not very steep. The current is also very slow. Deposition is the main activity of a river at this stage.

What is the name of the type of erosion that occurs in the upper course of a river?

As a result, the source of the river retreats. This type of erosion of the river is called Headword Erosion. The sources of Sutlej and Koshi have retreated towards Tibetan side and of Kaveri towards west in western ghats. The other two important formations of the upper course of a river are—rapids and waterfalls.

What is the meandering channel of the Dhansiri River?

The additional sediments carried by the river during the floods are deposited in this part. The channel is sometimes blocked, the river changes its course very often and becomes winding. Such a winding channel is known as a meander. The lower part of the Dhansiri River of Assam has a highly meandering course.

What are the main activities of a river in the upper course?

Erosion and transportation are the main activities of a river in the upper course. A river has a deep and narrow channel in this stage. Moreover, some of the rocks over which a river flows are very hard, while the others are soft. As a result of this, the river course is not smooth.

Where are oxbow lakes?

There are many ox-bow lakes on the two sides of Beki and Dhansiri rivers of Assam. At the time of flood, water inundates the low-lying area by the side of the river. The silt carried by the flood is thus deposited in this area year after year and a plain is built up. Such a plain is known as flood plain.

What is the name of the plain at the foot of the mountain?

It is called Alluvial Fan. In course of time many alluvial fans join together to make a plain. This type of plain at the foot of the mountain is called Bhabar. 3.

What is the name of the formation that flows through the river?

In that situation the two sides of the river become so steep that they become almost vertical. The formation is known as Gorge. There are many gorges on the upper course of the Brahmaputra, the Indus, and the Ganges.