A reducing link in the biosphere, they recycle dead organic matter. If there were no bacteria, the Earth would be covered with a pile of dead matter, and we would simply drown in it. The second reason is that the processing goes to an inorganic substance. If there were no bacteria, inorganic substances would be depleted. There would be no food for plants, herbivorous animals, predatory animals and humans. Those. there are two reasons, but one result – life would disappear.
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.