bài nói 1:pollution
(noise pollution )
In modern life, no one can escape from noise. Noise pollution is very dangerous and it is increasing in many countries especially industrialized countries. Many health problems can be caused by noise pollution such as hearing loss, annoyance, hypertension, tinnitus… so we need have effective solutions to reduce noise pollution.
First, we must know how to control the source of noise. In my opinion, sound from factories and vehicles are main sources that cause pollution. Therefore, with industrial zones and industries, we must locate them far from residential areas. In addition; we ought to have higher fine level for companies that cause air pollution. As for vehicles, we should increase public transports such as buses and tubes… Second, we will control the transmission of sound to reduce air pollution by planting many tresses because the green belt development can attenuate noise levels. Besides, building should be designed with suitable noise absorbing material for the walls and windows…This way can decrease effectively noise levels.
In summary, noise pollution is dangerous for everybody so we should have true sense to reduce that pollution