1) Biodiversity is the basis of diverse food chains and networks in ecosystems of the biosphere.
2) A variety of circuits and power networks is the basis of a balanced circulation of substances, maintaining the integrity of the biosphere.
3) The balanced circulation of substances is the basis for sustainability, self-regulation and preservation of the biosphere.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.