Try to explain the formation of clouds.

The air contains water vapor. The density of water vapor is less than the density of atmospheric air, so it rises up. In higher layers of the atmosphere, air pressure and temperature are lower. Water vapor, getting into these layers of air, condenses.

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.