The importance of water in everyday life should not be taken for granted, as water can freely be considered as one of the most important factors. It is why people today do everything they can to protect the environment and to save the water, as they are aware of its importance. It is why there are different water treatment systems nowadays. On the other side, there are rivers, one of the most important nature gifts for people around the world. For many of them, rivers are much more than water itself. People have inhabited the banks and springs of rivers from the earliest times because they supplied them with drinking water they needed for everyday life, provided protection, and were often the only means of transport. The countryside along the river was and still is of great importance: river valleys are often very fertile, which enables rich harvest, especially suitable for growing vines and fruits, and the climate is very mild. All this made it possible for settlements to grow into cities, as the foundations for economic and cultural have been established and created the development of the entire region. Rivers have always been considered beneficial for humanity and the beauty and experience of landscapes shaped by rivers have always fascinated and driven people.
- Amazon River
Amazon is the longest river in the world, and its length in kilometers is estimated to be around 6,992. The Amazon flows in the following countries: Brazil, Peru, Bolivia, Colombia, Ecuador, Venezuela, and Guyana.
- Nile River
With the length of 6,650 kilometers or 4,132 miles, Nile River is the second longest river, and it is the primary water resource for Egypt and Sudan.
- Mississippi River
Mississippi is 6,275 kilometers long, and it flows mainly in the United States with a very small part that flows in Canada.
- Yenisei River
This Russian river is 5,539 kilometers long, which equals 3,445 miles, and a very small part of it flows in Mongolia. It represents the largest river system flowing to the Arctic Ocean.
- Congo River
Congo River has the length of 4,700 kilometers which is 2,922 miles, and besides being one of the longest, it is also the world’s deepest river with measured depths in excess of 220 meters or 720 ft.
- Amur River
This river that forms the border between the Russian Far East and Northeastern China is also one of the longest rivers in the world, with the length of 4,444 kilometers, that is 2,763 miles.
- Lena River
With the length of 4,472 kilometers or 2,779 miles, Lena River that flows in Russia is the third biggest river in Asia and has the 9th largest catchment area.
- Mekong River
The Mekong is a trans-boundary river in Southeast Asia, with the estimated length of 4,350 kilometers, that is, 2,703 miles.
- Mackenzie River
The Mackenzie River is 1,738 kilometers or 1,080 miles long. It is the longest river system in Canada, and one of the most important rivers for this area.