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Humans, animals and plants on the earth are absorbing oxygen and exhaling carbon dioxide all the time. Why can't the earth run out of oxygen?
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As long as there is light, plants will constantly photosynthesize to produce oxygen.
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With the photosynthesis of green plants, carbon dioxide is converted into oxygen.
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According to the landlord, there is no sunshine in winter? Even if you don't have sunlight there, there has to be light, right?
As long as there is light, plants are able to photosynthesize, and oxygen is produced. It's just that for some light, the photosynthesis rate of plants is relatively slow.
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In winter, plants only respire and do not produce oxygen, who told you.
It's a balance, otherwise, humanity would not be able to survive.
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90% of oxygen is produced by marine algae.
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Introduction: Many people will know that there is a reaction called altitude sickness, which is because the oxygen content in the air is relatively low, and people will not be able to breathe at this time, so they will have altitude sickness. At this time, people know that the oxygen content in the air must be sufficient, so that people can exhale and exhale more smoothly.
Let's find out.
<> people live in the world and the highest degree of closeness to nature, at this time there will be some fresh air in nature, there will be some oxygen in the air, when the oxygen is sufficient, people can live a happy, healthy and happy life. So we need to know that when the oxygen content in the air is not less than 90%, we can breathe normally. Therefore, in daily life, the amount of oxygen in people's blood is very related to the degree of breathing and difficulty of people.
When people feel that it is difficult to breathe, it may be a lack of oxygen, at this time we need to understand what the problems are in time, and it is also good for the body.
We will know that the normal oxygen content in the air is generally 21%, so the maximum range value that the human body can withstand is 19%, when the normal content in the air, if it is lower than 19%, people's breathing will feel tired, it will be difficult at this time, and there will be some vomiting, and the movement will become inconvenient. Therefore, we must live under sufficient oxygen in order to be healthier, for some people with insufficient yang energy, he can use a ventilator in his daily life, there must be a disease in some aspect of the body, and we must pay attention to it at this time. You must know how to take care of your body and pay attention to health issues, so that you can live a healthy life.
We also need to know that the amount of oxygen in the air is not as much as possible, nor is it as little as possible, only if its air content is in the normal range, people will live more comfortably.
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When the oxygen content in the air is less than 14%, people will feel out of breath, because such air is not suitable for human breathing.
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When the oxygen content in the air is less than 80%, people will feel out of breath and will find it difficult to breathe.
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When the oxygen content is lower than 60mmHg, we will feel hypoxic and will not be able to breathe.
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Summary. What should I do if the oxygen machine comes out of the air, hello, I'm happy to answer for you :(1) The oxygen outlet is blocked.
Check whether the oxygen outlet of the oxygen generator, humidification bottle, and the pipeline of the oxygen inhalation tube are unblocked. Check whether there is airflow at the outlet of the oxygen concentrator, if there is any, it means that the oxygen inhalation tube or humidification bottle is blocked. (2) The air inlet is blocked.
The air inlet of the oxygen concentrator is generally at the back of the machine, and it is required to leave the wall more than 20 cm to ensure that there are no towels or foreign objects blocking the oxygen outlet. (3) Molecular sieve damage. Too much dust or humidity in the air can cause damage to the molecular sieve.
Good. What should I do if the oxygen machine is coming out of the air, dear, I am happy to answer the reed noise for you :(1) The oxygen outlet is blocked.
Check whether the oxygen outlet of the oxygen concentrator, humidification bottle, and the pipeline of the oxygen inhalation tube are unblocked. Check whether there is airflow at the outlet of the oxygen concentrator, if there is any, it means that the oxygen inhalation tube or humidification bottle is blocked. (2) The air inlet is blocked.
The air inlet of the oxygen generator is generally at the back of the machine, and it is required to leave the wall more than 20 cm to ensure that there are no towels or foreign objects blocking the oxygen outlet. (3) Molecular sieve damage. Too much dust or humidity in the air can cause damage to the molecular sieve.
What I asked was what to do.
How can oxygen come out.
The air inlet of the oxygen concentrator is generally at the back of the machine, and it is required to leave the wall 20 cm above the reed sedan chair to ensure that there is no towel or foreign body blocking the oxygen outlet, if it is blocked, there is no air inflow, and the oxygen cannot come out.
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1.According to Darwin's theory of evolution, human beings have adapted to the oxygen content in the air, and they are so violent that they will not be able to stand it. Because pure oxygen will oxidize human cells, causing poisoning.
2.Carbon dioxide in the air is a nervous system stimulant, which is why 5% carbon dioxide is mixed into the oxygen inhaled by the patient.
In short, people can't breathe pure oxygen!
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The oxygen we breathe is the air, and it's not right. Air is a mixture of gases in the earth's atmosphere, not only oxygen, but also nitrogen, oxygen, rare gases, carbon dioxide and other macro substances.
Air is essential for the survival of plants and animals on the ball, or for animal respiration and plant photosynthesis.
In its natural state, the air is colorless and odorless, the volume fraction of oxygen in the air is about 21%, and all animals need to breathe oxygen.
China's air quality is divided into 5 levels, of which level 3 is light pollution, level 4 is moderate pollution, and level 5 is severe pollution.
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Combustion is a violent reaction of substances to shine and heat, and accompanied by redox reactions, so an oxidizer is needed, and oxygen is an oxidant, in fact, combustion does not all need oxygen, chlorine is also an oxidant, chlorine and hydrogen can be burned together, and there are many similarities.
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