The role of man in the biosphere (positive and negative).

Man plays an important role in the biosphere of our planet. We promote the natural selection of other organisms. We create unfavorable living conditions for other animals. Also, we can destroy species. For example, some viruses. Thanks to many years of struggle, smallpox was finally defeated. We are of some benefit. We fertilize the soil, regulate the amount of some animals and plants. Man cannot be called harmful to the biosphere, as well as useful. But this applies to most species.