The longest rivers in the world

rivers

Rivers are small streams of sloping water originating from the heights of mountains or hills, and small streams of water gather to form a large river that eventually flows into a particular lake or sea. Where the water tables are branching and each of them is called a tributary, and when they meet with each other they form a river whose size depends on the number of its constituent tributaries. As for the sources of river water, it is rain water that flows into the land directly or melted snow or ice water, as it can be its source a spring that pushes water out of the earth,

The quantities of water in the river change due to the different quantities that enter it and the quantities that come out of it during the rainy season, in addition to the amount of water running on the surface of the earth, the amount of groundwater, and the rate of water flow from the river’s tributaries. All of these factors have an impact on the change in the amount of water River, as people use river water to meet their daily needs, and river water retains only 0.006% of fresh water around the world.

Rivers are classified into multiple classes according to specific standards, and these standards are:

Rivers according to the nature of their water flow; Rivers are divided into permanent rivers, intermittent rivers, and temporary rivers.
Rivers, according to their system or method of river water drainage and the periods when the amount of discharge is large, causing flooding, or small, causing sediments. They are rivers with a simple system, rivers with a double system, and rivers with a complex system.
Rivers according to their rank, and what is meant by this is the classification of rivers depending on the start of their sequence in the formation of their riverbed, and the arrangement of the river gives an image of the amount of flow in it, and the higher the rank, the greater the amount of water in the river.

The longest rivers in the world

There are many rivers on the surface of the globe that are distinguished by their ancient history and their important role in the development of human societies greatly, and some rivers are very long, and the following is a list of the ten longest rivers in the world, and this list is as follows:

The Nile River: It is the longest river in the world; As it is 6,650 km long; That is, about 4,130 miles, and it flows from northeastern Africa, and passes through Sudan and its south, and Egypt, and it is the main source of water in them, as it passes through Ethiopia, Burundi, Rwanda, Congo, Tanzania, Kenya, Uganda and Eritrea, and the Nile River is called the father of rivers in Africa; Where it rises south of the equator, and stems from the north and through northeastern Africa to end its course in the Mediterranean Sea and pour into it.
Amazon River: It is the second longest river in the world; As it reaches a length of 6,400 km; That is, about 3,976 miles, and it is shorter than the Nile River by a very simple distance. The Amazon River is located in South America and is the greatest river in it. It is also the largest river in the world in terms of the volume of water that is discharged. Its source from the west is the Andes Mountains. In the Atlantic Ocean on the northeastern coast of Brazil, its basin passes through large parts of Brazil, Bolivia, Peru, Colombia, Ecuador, and Venezuela.
Yangtze River: Known in Chinese as Chang Jiang, it is the third longest river in the world, and the longest river in China and Asia, with a length of 6,300 km; That is, about 3,917 miles, and the river passes between 10 provinces from the Tibetan Plateau to the East China Sea, and more than three-quarters of its flow is between the mountains, and it also includes eight major tributaries.
Mississippi River: It is located in North America, and it is the longest river in it, with a length of 6,275 m; That is, about 3,902 miles, and its tributaries occupy about a third of the continent with an area of 1.2 million square miles. It originates mainly from the United States of America, and rises to Canada with a flow rate of 98.5%, and 1.5% of it in the Gulf of Mexico, and the river crosses parts of 31 states. America, and two provinces of Canada.
Yenisei River: It is one of the longest rivers in Asia, and one of the largest rivers flowing into the Arctic Ocean; As it is the sixth among the rivers of the world in terms of water discharge, it originates mainly from Russia at a rate of 97%, while the rest is from Mongolia, and it flows into the Kara Sea, and its length is 5,539 km; That is, approximately 3,445 miles, and it extends from south to north through Siberia, covering large areas and distances, and passing through many attractive natural areas.
Yellow River: It is also called Huang Ho, and it is located in China, and it is the cradle of civilization in it, and the main river for the northern part of it and for eastern and central Asia, and it is the second longest river in China after the Yangtze River; As it is 5,464 km long; That is, about 3,395 miles, thus occupying the sixth place among the rivers of the world. In terms of its drainage basin, it is the third largest basin in China. It covers an area of 290,000 square miles.
Obi River: The Ob or Oby River is located in Russia, and it is the main river in it and one of the greatest rivers in Asia. Ubi 5,410 km; That is approximately 3,364 miles.
Parana River: It is located in South America, and ranks second in it after the Amazon River, with a length of 4,880 km, or about 3,032 miles, and flows through the southeast of Brazil, Bolivia, Paraguay, and northern Argentina. The river is also known as the Alto; That is, the upper one, and it has three important branches or tributaries, which are Tete, Iguacu, and Paranapanema, in addition to three sources close to the coast of the Atlantic Ocean in the southeastern part of Brazil. The Paran River formed waterfalls when it passed between the mountains, which are the Guaira Falls; However, it was flooded due to the Itaipu Dam, which was built in the early XNUMXs.
Congo River: It is located in Africa, and it is the deepest river in the world; Where its depth exceeds 220 meters, and it is the third in the world in terms of the volume of water it drains, and its length is 4,700 km; That is, approximately 2,900 miles, and it is thus the eighth in the world in terms of length, as it is the second after the Nile at the level of the continent of Africa, and it was previously called the Zaire River, and the river passes over the heights of northeastern Zambia, and then rises above sea level, 700 km from the ocean. It then flows counterclockwise through the south, southwest and northwest to flow into the Atlantic Ocean in the Republic of the Congo, in addition to passing through northern Mongolia, Cameroon and Tanzania.
Amur River: It is located in Asia and has a length of 2,824 km; That is, 1,755 miles, and the Amur River is located on the border between the far east of Russia and northeastern China, and the Amur River is the longest river in eastern Russia, and it passes through Siberia and Mongolia, and it also forms a large part of the border between Heilongjiang Province in China and southeastern Siberia. The original is Heilongjiang, meaning Black Dragon River.

The importance of river water

Rivers are of great importance in life on the surface of the globe, as life in them has been based since ancient times on river water, whether for drinking or for irrigation and agriculture, and it is also used to generate electric power, move and transport machines, and rivers help keep the underground layers in the ground filled with water, and they are also used rivers for waste disposal; However, this is done without taking into account that waste has a significant negative impact on river life. Where waste dumping in rivers leads to deterioration and pollution of aquatic life in them; Which leads to a change in it and the replacement of other species in its place.