Our planet has an atmosphere that is different from the atmosphere of other planets. The air envelope of the Earth is very important for the preservation and maintenance of life. It contains oxygen, which living creatures breathe, and carbon dioxide, which is necessary for plant nutrition. In addition, there is ozone in the atmosphere, a type of oxygen. It forms a special ozone layer, which traps radiation from space, which is dangerous for organisms. In addition, the atmosphere, like a blanket, protects the Earth from strong cooling at night. It protects the Earth from meteorites. Most of them, getting into it, burn out.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.