Give examples of the biological cycle (optional).

Plants absorb carbon dioxide and produce oxygen. Oxygen is consumed by animals and humans, in turn producing coal. gas that is reabsorbed by plants.

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.