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
The Amazon River starts in the Nevado Mismi region of the Andes Mountains in Peru. It is the biggest river in the world terms of volume of water discharged. It is also the second longest river after the Nile in Africa, with a total length of 6,992 kilometers.Full Answer >
Colorado contains more than 2,000 lakes and reservoirs, including Grand Lake, Blue Mesa Reservoir, Lake Dillon and Lake Granby. The state features more than 105,000 river miles and nearly 250,000 acres of lakes. Most bodies of water in Colorado originate in the Rocky Mountains and flow downward toward the east or west. Colorado contains seven major river basins.Full Answer >
Deep ocean currents are caused by density differences in the water, which are typically due to variations in salinity and temperature. Deep ocean currents are those found below 1,312 feet (400 meters). They are also known as thermohaline circulation and make up approximately 90 percent of the ocean.Full Answer >
The Baltic Sea borders Sweden, Finland, Denmark, Russia, Estonia, Latvia, Lithuania, Poland and Germany. The Baltic Sea is an arm of the northern Atlantic Ocean that separates the Scandinavian Peninsula from the rest of Europe.Full Answer >