Man’s influence on the Earth: he builds houses, roads, builds bridges, makes cars, planes, space rockets, creates many different products. In addition, due to human faults, fires occur, gas explosions, radioactive emissions into the air, oil spills and toxic industrial wastes. These are man-made disasters, as a result of which people and animals die, soil, water and air are polluted.
An example would be the construction of dams, factories and enterprises polluting the air. Laying roads, railways.
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.