In the heat, beads of sweat appear on the human body. In this case, the human body is cooled. Why?

Sweat is an evaporating liquid and when it evaporates, the body loses heat.

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.