Some interesting facts about salt marshes include that they are flooded and drained a number of times every day by saltwater. These coastal environments have variations in their water level based on the tide. The ground is often made up of mud and thick layers of decaying plant matter known as peat.Know More
The decay of the plant matter in peat absorbs oxygen, so the peat itself often has extremely low oxygen levels. The bacteria that absorb the oxygen as they break down the plant matter release gases with sulfur in them, often causing salt marshes to smell like rotten eggs. Salt marshes are rich with both plant and animal life, and they serve as an important buffer against erosion on coastlines. They also play an important role in delivering nutrients to coastal waters.
Salt marshes usually form where rivers flow into marine estuaries or other areas that are protected from waves and other powerful forms of erosion. The rivers deposit sediment, which forms the mud and sand of the marsh. As the sediment builds up over time, the area is flooded more slowly and for shorter periods, which allows plants to colonize the exposed mud. The higher the level of the marsh is, the less often it is flooded, and the lower the salt levels, allowing for different species in different places.Learn more about Landforms
Deserts are important because they provide corridors for migration for a number of species and yield a number of water-soluble nutrients not available in comparable quantities anywhere else on the planet. The spread of these nutrients benefits species all over the planet.Full Answer >
The chemical formulas H2O and NaCl stand for water and common salt; when mixed, they produce a saltwater solution. Saline water is expressed in terms of parts of salt per thousands of parts of water.Full Answer >
The reason salt increases the density of water is that the mass of the resulting saltwater solution increases, while the volume is unaffected. The density of a substance is given as the mass (m) per its volume (V). The equation is density = m/V.Full Answer >
Although it depends on the specific dog, female dogs are usually the most fertile around the 11th day of estrus, and typically cycle twice a year, but exact times vary by breed and location. Male dogs are fertile all the time, after reaching sexual maturity.Full Answer >