What process ensures the persistence of life on Earth?

The process of photosynthesis, the by-product of which is oxygen.
Indeed, trees do not produce oxygen for us, they try only for themselves, during photosynthesis oxygen is only a side effect, very useful for us.



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.