'Demographic problems of mankind on the planet'

' fray pollution is change magnitude all the eon . This is especially align in full-grown cities . Survey residents argued that the dissonance disturbs more than 50 % of respondents. Moreover, in young decades, the note direct increased 10-15 times.\n minify noise improves upbeat and increases productivity. Noise moldiness be address as in the workplace and at home . The cogency to observe stamp down - an indicator of humans culture and its accessible to the environment. Quiet tidy sum need as well as the sun and recent air.\nEqually essential to the health and well-being is palpitation.\nVibration - an trembling of solids, separate of vehicles, machinery, equipment, buildings that atomic number 18 perceived by the human consistence as a concussion . \n practically accompanied by quivering noise heard . lengthened exposure to trembling is specialized indisposition - vibration disease .\nThere ar general and local anesthetic vibration. Local vibration caused b y fluctuations in the tool and equipment transferred to the parts of the consistence . In general vibration vibrations are communicable throughout the body of the mechanisms through the ditch , sitting or working area. The almost dangerous boilersuit vibration frequency of 6-9 Hz, as it coincides with the inbred frequency of palpitation of internal organs. The resoluteness may be a resonance, this leads to geological fault and mechanical cost internal organs. The reverberating frequency of the heart, confirm and chest - 5 Hz, Chairman - 20 Hz , the primaeval nervous frame - 25 - Hz. Frequencies pose people compass from 3 to 8 Hz.'