Contamination of the soil with chemical and organic substances causes significant harm to human health, flora and fauna. A change in the biochemical composition of the soil leads to an insufficient or excessive content of trace elements very important for human health and representatives of the animal world: iodine, cobalt, fluorine, molybdenum, manganese, zinc, boron, strontium, selenium, and many others. The most dangerous soil pollutants include lead, mercury and their compounds, as well as copper, arsenic, nickel, gasoline, hydrogen sulfide, chlorophos, and karbofos.
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.