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Anonymous users2024-02-08Ozone (03) is an isomer of oxygen (O2) that is found in the atmosphere at levels of only 1 part per 100 million, and its concentration varies depending on altitude. The ozone layer can be said to be the protective layer of the earth, which mainly surrounds the outside of the earth at an altitude of 20-25 kilometers above the ground, and plays a role in absorbing the harmful part of the sun's ultraviolet rays (UVB is a wavelength of ultraviolet rays, which is 280-315nm). At the same time, because ultraviolet light is the thermal energy of the stratosphere**, and ozone molecules are an important part of the stratosphere atmosphere, the vertical distribution of the ozone layer in the stratosphere plays a decisive role in the temperature structure and atmospheric movement of the stratosphere, and plays an important role in regulating the climate.
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Anonymous users2024-02-07Our Earth is surrounded by an atmosphere that protects us from all kinds of harmful substances from outer space, which is a collection of the Earth's various atmospheres. Among them, the most abundant is nitrogen, which accounts for 78% of the total atmosphere, followed by oxygen, the gas that ensures life on Earth.
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Anonymous users2024-02-06In 1974, American scientists Molina and Rowland announced that the chlorine atom in the chlorofluorocarbons (commonly known as freons) and the bromine atom in the halons were the culprits in the destruction of the ozone layer. They and another scientist were awarded the 1995 Nobel Prize in Chemistry for their pioneering contributions. This discovery is very embarrassing for humans who are intoxicated by their own intelligence:
Refrigerants, foaming agents, fire extinguishing agents, desiccant, desiccants, cleaning agents, and hair sprays are ozone depleting substances (ODS).
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Anonymous users2024-02-05Hundreds of millions of years ago, there was no ozone layer in the atmosphere on the earth, the surface of the earth was strongly irradiated by ultraviolet rays from the Taicha sun, there was no living life on the ground, only a few organisms lived in the water, because water can absorb ultraviolet rays, green plants in the water continue to absorb carbon dioxide in the atmosphere, release oxygen, diffuse into the air, and part of the oxygen in the upper layer of the atmosphere, by the action of ultraviolet rays, according to the reaction shown below, oxygen becomes ozone and produces the ozone layer.
o2 + hν→ 2o
o2 + o → o3
That is, the oxygen in the upper atmosphere is turned into free oxygen atoms by ultraviolet radiation of the old sunlight, and some free oxygen atoms are combined with oxygen to form ozone, and 90% of the ozone in the atmosphere is formed in this way.
The ozone layer is very important to life on Earth, because it can filter out ultraviolet rays, so that life on Earth can land and live on the surface of the earth. r9
What does the ozone layer do?
The destruction of the ozone layer is linked to the greenhouse effect. Human pollution has caused the notorious greenhouse effect, which has created a huge hole in the ozone layer at the Earth's north and south poles. Harmful ultraviolet radiation pours into the atmosphere from the hole in the ozone layer, while billions of oxygen molecules escape from the hole into space every minute.
What foods tomatoes are eaten with can cause diarrhea in the human body.
Climate warming is the excessive emission of carbon dioxide, which far exceeds the photosynthesis needs of the value substances, causing the greenhouse effect. The destruction of the ozone layer was caused by the refrigerant used in refrigerators (the name was forgotten). Improvement, tree planting, research and development of new energy sources, the use of energy for the transformer, etc.
Recently, Nature** reported a surprising news: the ozone layer above the Arctic, which has always been intact, has a huge hole, which scientists have tracked and explained, let's take a look.