Where do you think the dust in the air comes from? Give examples.
| August 14, 2021 | education
Almost 80% of the dust in the room consists of keratinized and exfoliated skin cells. On the street, these are particles of earth, sand, lifted by the wind, or other lifting force (turbulence of an airplane or helicopter).
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
