What is Usti?

is a water element where fresh and salt water with a mixture. Because the mouth requires free and open access to the sea, the mouths of commands always occur along the coast, although in some cases they can extend several kilometers inland. The unique natural environment Usti hosts numerous species of animals and plants and tends to be a profitable place to settle people, as the mouth can create an excellent place for the harbor. Some biologists specialize in studying complex systems present in Ústí. For example, many of them are drowned by a river, created when the sea level rises, causing the ocean to flood low -laid ground. Others are made up of tectonic movements when the Earth plates are joined or expanded to form deep folds in the ground. Bar Usti is protected behind sand or island, while fjords are the mouth carved from the land of the period of the period. For example, many bays and bays are actually mouth. Fineer conditions are ideal for youthful species of sea animals and mOhou also protect the range of water birds and plant species. In addition, the mouth tends to collect nutrients and provides a sufficient source of food for animals that calls home institutions.

The water in Ústí is classified as a brackish, which means it is salty than fresh water, but not as salty as real seawater. Different mouths have a unique level of mixing; Some are strongly stratified, which means that denser, cold salt water embraces the bottom, while a warmer freshwater float above and others are more mixed. The exact levels of salinity and pH differ in the mouth around the Three, depending on the levels of water flows from water sources that combine and create the mouth.

The mouth can be very sensitive to environmental degradation. For example, a severe upstream damages can lead to a reduction in the flow of fresh water into the mouth of the river, which dramatically changes the environment. This can lead to a decline in biologicalé diversity, because softer species die or find more hospitable places. Pollution can also seriously affect the mouth, especially nutrient pollution, such as farm away, which can cause a large decrease in water quality.