Most of the water people use everyday comes from these sources of water on the land surface. Hippos, crocodiles, baboons, elephants, hyenas and lions are some examples of wildlife you might find along the Zambezi. Invertebrates. Rivers also provided ancient societies with access to trade -- not only of products, but ideas, including language, writing, and technology. The lower river, which has a relatively narrow but deep channel, is navigable for oceangoing ships upstream to Baton Rouge, La. Add your answer and earn points. They were our first highways, bringing explorers into the heart of the continent. Indigenous peoples in many parts of the world--on the Columbia, Nile, Mekong, and Amazon rivers for example--still rely on rivers to provide them with food. Water from some source like a spring, snow melt or a lake starts at this high point and begins to flow down to lower points. Rivers provide our communities with economic, ecological, and cultural value. In 1985, the number of large dams was thought to be 60,000. Water currents provide oxygen and nutrients for plants. Rivers provide us with food, energy, recreation, transportation routes, and of course water for irrigation and for drinking. This is called subsistence fishing . On the landscape, freshwater is stored in rivers, lakes, reservoirs, and creeks and streams. People also harvest fish, shellfish, mollusks, ducks and other food animals from rivers. People use rivers for transportation and as a source of natural resources. They play a very important part in the water cycle, acting as drainage channels for surface water. Let's take a look at what makes rivers so amazing! These are very rough estimates. For example, people draw water from rivers to fulfill their drinking, bathing, irrigation, cooking and industrial needs. Fast-flowing rivers carry pebbles, sand, and silt. From there to Cairo a 4-m-deep (12-ft) channel is maintained. Rivers: Lifelines to the World. The National Wild and Scenic Rivers System has only 13,413 river miles in it—less than one half of one percent of our rivers are protected through this designation. River-based irrigation permitted communities to specialize and develop, even in areas lacking adequate rainfall. All rivers and streams start at some high point. Invertebrates have no backbone or spinal column and include crayfish, snails, limpets, clams and mussels found in rivers. The high point can be a mountain, hill or other elevated area. Rivers can also form what is called an estuary, where salty seawater mixes with fresh water near the river mouth to form “brackish water.” The Hudson River in New York, U.S., is an example of an estuary where brackish water extends more than 241 kilometers (150 miles) upstream. All these things come to mind, instinctively or very consciously, whenever we think of rivers or spend time near them swimming, fishing, boating, or canoeing. Possibly it's to do with the tranquility of a river; in countryside or in cities, the sight of water has an instantly calming effect. Most settlements were built along major rivers. Rizla Rizla Answer: The Zambezi River is widely used by wildlife and humans alike. Plants protect animals from the current and predators and provide a food source. Currently, 600,000-750,000 miles of our rivers lie behind an estimated 75,000 dams. When dams are built, these subsistence fisheries are often flooded out, forcing people to move away and find other work. A large number of the invertebrates in river systems are insects. For those cultures that depended on them, rivers were the lifeblood. Rivers are useful for us in many ways - Water Rivers carry water and nutrients to areas all around the earth. Rivers come in lots of different shapes and sizes, but they all have some things in common. Freshwater on the land surface is a vital part of the water cycle for everyday human life. Today, our rivers are still essential to our day-to-day lives. What do rivers provide? What do the Orange and Zambezi rivers provide See answer Michelleislulu is waiting for your help.