One of the virtues of the green tree is that it reacts chemically with water and sunlight with carbon dioxide in the air to make its own food and oxygen. This is called photosynthesis. That is why it is customary to keep tubs of flowers and various deciduous trees in the rooms of the patients. It is hoped that the oxygen in the tree will purify the air. But keep in mind that only green trees produce oxygen and this requires intense light. So at night the tree cannot produce any oxygen.

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Colored flowers also do not produce oxygen. So the house flowers at night do not give any additional benefits. Trees, on the other hand, are constantly releasing carbon dioxide, taking oxygen from the air in the process of respiration. The amount is very small, so there is not much fear of danger. In the last half of the eighteenth century, the Dutch biologist Ian Ingenhaus discovered this exchange between green trees and the wind. He was skeptical about the benefits of keeping trees in the house. The fact is that the air in the flower tub is not very pure. But there is no harm.

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However, if a tub of many trees is kept in a small room, then there may be a problem of oxygen. The large banyan trees in the field give a lot of oxygen to the air during the process of photosynthesis during the day. The amount of carbon dioxide emitted by the plant is much less than that. But at night only this harmful gas mixes in the air little by little and it starts to accumulate as it is relatively heavy. If the tree is very large, then the amount of carbon dioxide stored in the morning may be a little higher. That is why you should not sleep under a big tree at night. It is difficult to breathe on the last night. From this incident, many of the villagers said, there are ghosts in the big banyan tree, they hold their throats. In fact, it is a matter of that extra carbon dioxide.

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