What is a river and why is it important?

Rivers carry water and nutrients to areas all around the earth. They play a very important part in the water cycle, acting as drainage channels for surface water. Rivers drain nearly 75% of the earth's land surface. Habitats. Rivers provide excellent habitat and food for many of the earth's organisms. Many rare plants and trees grow by rivers. read more

The Mississippi River provides hydroelectric power to a number of different cities. The river is the second longest in the United States and has 25 locks and dams. The river also drains off floodwater, which prevents many regions throughout the United States from flooding. read more

The river is a drinking water source for cities and towns along the river. Polluted water in the White River and surrounding streams means people can’t swim or play in the water. Fish living in polluted waters are often not safe to eat. read more