Why is the incidence of trees in the city higher, and their life expectancy is less than in the nearby countryside?

this is due to the increased content of harmful compounds in the atmosphere and soil of the city; severe dustiness, which impairs photosynthesis; violation of air and water exchange in the soil during road construction and asphalt laying; soil salinity; mechanical damage to plants; lack of the required amount of nutrients in the soil due to a violation of the cycle of elements.

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.