Have you ever wondered why the sea is salty?Actually, the answer to this question is not that simple. Next, let me unravel the mystery of the saltiness of the seawater.
First of all, we need to understand the main salts in seawater. In fact, most of the ocean's salt comes from the Earth's rocks. When rainwater falls to the ground, it washes out the salt from the rocks and then flows into the river. Rivers carry these salts into the ocean. In addition, the rocks on the ocean floor also release salt through the erosion of the waves.
In addition, there is an important ** is the evaporation of the seabed. When seawater evaporates, the salt does not evaporate with the water vapor, but remains in the ocean. Over time, these salts accumulate in the oceans, making the waters saltier and thaliser.
In addition to this, there are also biological activities that can also affect the salinity of seawater. For example, some marine plants absorb salt from seawater and release it back into seawater at the end of their life cycle. At the same time, some marine organisms also release salt into the seawater through excretion and other means.
So, what are the effects of these salts on marine ecosystems and humans?First of all, salt plays an important role in the survival of marine life. Some marine organisms require a certain amount of salt to maintain their normal physiological functions. However, excessive salinity can also adversely affect some organisms and even lead to their death.
In addition, the saltiness of the sea water also has an impact on human navigation and fishing. When sailing, the high salt concentration of seawater can cause corrosion to the metal parts of the vessel. In fisheries, high levels of salinity may affect the growth and reproduction of fish, which in turn can affect the yield of the fishery.
In general, the saltiness of the sea is mainly due to the fact that the salt in the earth's rocks is washed into the ocean by rain, and the evaporation and biological activity on the seafloor are the result of a combination of factors. Although salt has an impact on both marine ecosystems and humans, we also need to recognize its importance and role. After all, without these salts, the marine ecosystem would be greatly affected. At the same time, we also need more attention and research on how to rationally use and protect marine resources.