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Some people believe that the rain is transparent and crystalline, the snow is white and immaculate, and the rain and snow are very clean and can be drunk directly. But in fact, they are not clean and cannot be drunk directly.
Water vapor is present in the air at all times. These are oceans, lakes, rivers, pools, wetlands, clothes that haven't been dried, and so on. When they are exposed to sunlight, the water in them evaporates and becomes water vapor, which is scattered in the air.
When the water vapor condenses to a certain extent, the buoyancy of the air can no longer bear it, and it will fall to the ground, forming rain. In the process of "traveling" to the ground, the rain will bring many "little friends", such as the smoke particles emitted from the factory, the dust above the ground, and even the bacteria in the air will also take the opportunity to mix in. Therefore, when the rain fell to the ground exhausted, it was already dry.
Therefore, of course, rainwater cannot be taken and drunk. However, when rainwater seeps into the ground, it passes through a thick layer of sediment, which filters out dust and bacteria, and becomes clean, and the rainwater is stored underground and becomes groundwater. Well water and spring water are groundwater, and they are drinkable.
In winter, after the heavy snowfall, the land is covered in silver, which is spectacular. As the saying goes, "Ruixue is a good year".
People look forward to snow days, believing that snow is the purest purifying thing in the world, and that cold snow can kill many bacteria that are not hardy, but in fact, snow is also unclean. Put the snow in a clean container, and when it melts, you will see a lot of fine dust particles at the bottom of the container. Therefore, snow, like rain, cannot be drunk directly.
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I think it's best not to drink it, because rainwater is produced during the natural cycle and can be harmful.
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It's okay in general, but it's not in good shape, and some rainwater is very acidic and will corrode things.
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Theoretically, it's drinkable, but have you ever heard of acid rain? Most of the rainwater is polluted now, try not to drink it, the rainwater and the river water are almost the same, the river water used to be drinkable, and now how many people dare to drink it?
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Rainwater is not allowed to be drunk.
Rainwater is transparent and clean, but it actually contains a lot of bacteria and dust that we can't see with the naked eye, and when the rain falls on the ground, these bacterial dust also fall with the raindrops. Moreover, the water vapor in the air must adhere to the nodules in order to form water droplets, and the nodules are generally acted by some dust substances, so the rain itself is not clean.
With the acceleration of modern civilization, the development of industry is accelerating, and the air pollution is intensifying, the body of rain is water vapor, when the water vapor condenses to a certain extent, the buoyancy of the air can no longer bear it, and it will fall to the ground and form rain. As the rain falls to the ground, it absorbs a lot of dirty matter, such as smoke particles emitted from factories, dust above the ground, and even bacteria in the air.
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Dear, rainwater can not be drunk, because there is often a lot of dust in the air, even in mountainous areas, and in crowded areas, developed transportation and industrial areas, there is more dust in the air, and there are often various pathogenic bacteria, viruses, parasite eggs and other pathogenic microorganisms. When rain falls from the sky, dust in the air can dissolve in the rain; In atmospheric dust, special harmful substances from industrial waste gas and waste residue can also be dissolved in rainwater. And these harmful substances cannot be eliminated by boiling.
If it is eaves water, there will be more dust and domestic pollutants deposited on the roof. It can be seen that drinking rainwater is unhygienic and has the potential to cause diseases and damage health. Therefore, although the rainwater falling from the sky is convenient to use, it is not suitable for drinking, especially in industrial and mining areas, let alone drinking the stored rainwater.
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Rainwater cannot be drunk. Rain is the earth's water cycle, the main components are water (chemical formula H2O), sulfur dioxide (chemical formula SO2), nitrogen dioxide (chemical formula NO2), usually the pH value of rain is about, the pH value is less than the rain is acid rain, in case of thunderstorms, the rain will contain a small amount of ozone molecules (caused by lightning), as well as a variety of impurities and floating dust in the air. These ingredients can be harmful to human health, so rainwater should not be drunk.
Rain: Rain is the second solar term of the 24 solar terms. Dou Zhi Ren; The Sun reaches the ecliptic longitude 330°; The festival is held on February 18-20 of the Gregorian calendar every year.
The meaning of the rain solar term is the beginning of rainfall, and the rainfall level is mostly light rain or drizzle. As the saying goes, spring rain is as expensive as oil, and suitable precipitation is important for the growth of crops, and it is a reflection of the farming culture for the season. Entering the rainy season, there is no spring breath in the northern part of our country, and most places in the south are full of spring, a scene of early spring.
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Rainwater cannot be drunk directly.
Rain refers to water that falls from the atmosphere to the ground. When water vapor cools and condenses into water droplets in the atmosphere, clouds and rain are formed. Rainwater is a source of water that plays an important role in the growth of organisms and plants on earth.
The process of rain formation is the formation of clouds by the rise, cooling, and condensation of water vapor in the atmosphere, and then the water droplets in the clouds gradually increase and when they are large enough, they fall from the clouds to form rain.
The composition of rainwater is mainly pure water, but it may also contain some impurities and pollutants in the atmosphere, such as dust, soot, chemicals, etc. Rainwater plays an important role in maintaining the water cycle on Earth, moisturizing plants, and replenishing water sources such as groundwater and lakes.
In some areas, rainwater is also collected and used as a non-potable source, such as irrigation, washing, flushing, etc. However, it is important to note that drinking untreated rainwater directly can be a health risk, so it is best to properly treat and filter it before drinking.
Causes of rain
Rain can occur in a variety of ways, from drizzle to continuous rain and downpour showers. When water on Earth is irradiated by sunlight, it becomes water vapor and evaporates into the air. When water vapour meets cold air at high altitude, it condenses into small water droplets.
These small droplets are small, with a diameter of only millimeters and a maximum of millimeters.
They are small and light, held in the air by updrafts in the air. It was these small droplets of water that gathered together in the air to form clouds. For these small droplets to fall to the ground as raindrops, they would have to increase in size by more than 1 million times.
It mainly relies on two means, one of which is condensation and condensation increase. The second is to rely on the collision and increase of cloud droplets.
During the initial hail period of raindrop formation, cloud droplets mainly rely on continuously absorbing water vapor around the cloud body to condense and condense themselves. If the water and gas energy sources in the cloud are constantly replenished and the surface of the cloud droplets is often supersaturated, then this condensation process will continue, causing the cloud droplets to grow and become raindrops.
The above content refers to Encyclopedia - Rain.
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