The mouth of a river is another name for its terminus, where it meets an ocean, sea or lake. Because rivers generally carry abundant sediment and deposit it at the mouth, they often form deltas, or broad, shallow areas. The opposite end of the river is called the headwaters or the source; however, the headwaters are often formed by several discreet sources that all occur in the same general area.Know More
The source of a river is usually at a much higher elevation than the mouth. Because they follow the contours of the ground, rivers rarely follow a straight path -- they always follow gravity to the lowest spot. When this occurs, a river is said to “meander.” When the land’s slope is steep, the rivers are usually fast, and the substrate is composed of rocks and gravel. Conversely, when the land is not very steep, rivers tend to become broad and have muddy or sandy bottoms.
When a river’s mouth empties into an ocean or sea, the fresh water from the river mixes with the salty water from the ocean, producing brackish, or semi-salty water. These areas are called estuaries, and they are often important rearing grounds for marine life.Learn more about Bodies of Water
The longest river in the world is the Nile. It is 4,160 miles long and is located in northeastern Africa. It passes through eleven countries including Uganda, Ethiopia and the Republic of Congo and is the primary water source for Egypt and Sudan.Full Answer >
The Missouri River got its name from a Sioux Indian tribe called the Missouris. This tribe gave both the state and the river their names. According to the Smithsonian Institution Bureau of American Ethnology, "Missouri" is translated as "town of the large canoes."Full Answer >
The deepest river in the world is the Congo River, also known as the Zaire River. The Congo River reaches depths of as much as 750 feet.Full Answer >
Another word for a small river or stream is “brook.” Creek and rivulet also have a similar meaning. Most of the creeks, brooks and rivulets are found at the source of large rivers and in mountainous terrain. The waters of a brook or a rivulet appear clear and pollutant free.Full Answer >