What is a natural area? What are the patterns in the distribution of natural zones on the earth’s surface?

Natural complexes on our planet are characterized by high diversity, and the nature of each continent is not similar to the nature of another. Different natural zones have formed on the earth’s surface under the influence of climate, which are large natural complexes characterized only by their inherent: temperature, moisture, soil types, vegetation and fauna. First of all, the zones can be distinguished from each other by the nature of the vegetation, which served as the name for a particular zone.
Natural zones are located on the Earth’s surface according to the change of climatic zones. A harsh or arid climate corresponds to sparse vegetation.