ESSAY ON RIVER A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. Rivers are an important resource for people, providing drinking water, irrigation for crops, and a means of transportation. They also play a critical role in the ecosystem, providing habitats for a diverse range of plants and animals. Rivers can be divided into three main categories: young, mature, and old. Young rivers are characterized by a steep gradient and fast-moving water, while mature rivers have a more gradual slope and slower-moving water. Old rivers, also known as meandering rivers, have a very gradual slope and meander through the landscape. Humans have also greatly impacted rivers through activities such as damming, channelization and pollution. Dams can alter the natural flow of a river and disrupt the ecosystem, while channelization can straighten and dee...