Amazon, Orinoco, Mekong and Yenisei are all the great rivers in the world. In addition, they play a role as an abundant supply to a variety of areas throughout the world. However, sometimes these rivers are fraught with enormous dangers. Even they can result in the death of humans if they get across the rivers at unreasonable times. For this reason, these rivers are also listed among the most dangerous rivers in the world. This article will provide you with some information about basic features of the above-mentioned rivers.
Amazon has been long known as one of the largest rivers in the world. Its length only ranks behind the Nile but this river is unrivaled in the amount of water. The Amazon River accounts for about 20% of the total freshwater supply to the oceans. The widest space of the river in the dry season is measured about 11 kilometers (6.8 miles) while in the rainy season, the widest part can be up to 40 kilometers (24.8 miles). The river mouth is 325 kilometers (202 miles) in width. Because of owning such an outstanding width, it is also called the River Sea.
The creatures living in Amazon river have a huge size. A catfish weighs up to nearly 100 kilograms. Besides, there are a lot of fierce sharks and the giant snake Anaconda, which is regarded as the largest snake in the world.
As a result, Amazon is definitely not a river where you can leisurely take a boat trip. It is fraught with numerous dangers that can dispossess human lives at any time.
Previously, Orinoco River owns many different names until the Spaniards arrived in the 16th century. In 1531, the name of Orinoco was recorded and in 1591, Orinoco became the official name of the river. The name is a combination of the word “orino” which means clay and “co” that means water. Therefore, Orinoco has the meaning of a clay river.
With a length of 1330 miles (2,140 kilometers), Orinoco is one of the longest rivers in South America. It runs through Columbia and Venezuela. The two banks of the river are covered with dense rainforests. The Orinoco has nearly 200 branches going through 41,000 square kilometers of swamp forests. The danger of this river comes from some waterfalls and rapids pouring down at a very fast speed, which causes some difficulties in navigation. Another threat to the people living on the border of Orinoco is the floods that occur throughout the year.
The Mekong is the seventh longest river in Asia. It flows through China, Myanmar, Laos, Thailand, Cambodia and Vietnam. Moreover, Mekong River owns one of the most diverse ecosystems in the world with several rare species of animals such as softshell turtle, saltwater crocodile and large freshwater dolphin. In addition, the Mekong is one of the most important transportation routes in the region. A dominant function of the Mekong River is to regulate the flow by Tonlé Sap Lake, also called Great Lake, which is the largest natural lake in Southeast Asia. However, it can bring about quite a lot of potential risks.
In particular, in 2008, Mekong River coped with the worst flood in the past 100 years. The water level is 12 meters high, engulfing thousands of homes, which inflicts the severe damage of more than $66 million.
Yenisei River runs through Mongolia and China. This is one of the largest river systems that flow into the Arctic Ocean. When seeing the surface of the Yenisei river, we feel that it is quite gentle. But in fact, it consists of a host of possible dangers because of the high level of toxic and radiation.
According to some researchers, the river has been suffering from the severe pollution for several decades because of the waste from the bomb factory. A medical study shows an alarming number of the rate of children with leukemia, women with breast cancer and newborn babies with mental retardation in the residential area near the Yenisei River.
In reality, rivers always have a crucial role in the human life regardless of the fact that they occasionally become the rivals of humans and cause the extensive damage. Hope that this article will bring you useful knowledge about the natural world.