Why does water stay on earth for billions of years without deteriorating, but it deteriorates easily

Due to the self-cleaning ability of water, the reason water on earth will not expire is because water on earth has undergone a water cycle and the organisms present in the water also ensure that the water is clean. This is why we say that “water has the ability to clean itself.”

We know that there are many organisms in water, which can be roughly divided into three categories based on their types: producers, consumers, and decomposers. Producers are mostly plants that produce energy through photosynthesis. Most consumers are animals that cannot produce energy themselves and need to obtain energy from the outside world. Decomposers, mainly microorganisms, break down organic matter into simple inorganic matter.

In addition to the self-cleaning capacityte water, water also participates in the water cycle. Water on earth evaporates all the time. After evaporation, water vapor is lighter and rises to high altitude. When enough water vapor accumulates in the sky, the water vapor condenses with dust, particles, etc. to form small water droplets. Although these small water droplets fall downward, their diameter is small enough, they evaporate again along the way. down. Only small water droplets of larger diameter will drip onto the ground and form rain.

In addition to the atmospheric water cycle, "Nature" magazine also reported that the water cycle also takes place inside the earth. There is a trench near Japan that is currently the deepest known trench in the world: the Great Marigana Trench. The Marigana trench is located at the subduction limit, where waterof sea penetrates into the interior of the earth. According to statistics, hundreds of millions of tons of seawater are swallowed into the earth's interior every year. But this swallowed seawater will also flow to the surface during the volcanic eruption, thus completing the water cycle.

In fact, the drinking water in the bottle also comes from water from rivers and lakes, but this water is "raw water" and must go through a series of processes such as precipitation, impurity removal, disinfection and filtration to clean impurities from raw water. It is tested to meet human drinking water standards before being poured into bottles. Compared to rivers, lakes and seas, the water contained in the bottle is a closed system. Only certain microorganisms can survive in this system, which also means thatThey have no natural enemies and can reproduce in large numbers. Although the bottle is sealed and stored, the microorganisms are very small and many microorganisms reproduce asexually. The reproduction time is relatively short and can multiply from one microorganism to thousands of microorganisms in just 6 hours. As a result, over time, the number of microorganisms in the bottle will increase significantly and it will no longer be suitable for human consumption. Therefore, mineral water or purified water generally has a shelf life.

Can we use natural forces to establish a system of infinite water circulation on the earth's surface?

Steam engines emit a large amount of carbon dioxide. Second, they are unprofitable, consume too much energy and provide little benefit. Being too big and bulky also makes itpart. Current technology is enough to make it smaller, but compared to modern machines, the performance is still the same. This is a big gap. Hope this helps, thanks!

What everyone said isn't entirely accurate. In fact, the great circulation between sea routes is a system of "infinite" water circulation. The energy for the water cycle comes from the sun. When the sun is present, the water cycle continues. Of course, when the sun disappears, the water cycle stops. As the Sun still has 6 billion years to live, we can consider the water cycle on Earth to be “infinite”.

I don't know if LZ is satisfied with this explanation