首页
登录
职称英语
According to the passage, intense noise pollution may NOT cause [br] [originalt
According to the passage, intense noise pollution may NOT cause [br] [originalt
游客
2024-10-21
1
管理
问题
According to the passage, intense noise pollution may NOT cause [br]
Unwanted sound or noise produced by airplanes, traffic, or industrial machinery, is considered a form of pollution. Noise pollution is at its worst in densely polluted areas. It can cause hearing loss, stress, high blood pressure, sleep loss, distraction, and lost productivity.
Most humans can hear sounds between 20 and 20,000 hertz, while dogs can hear high-pitched sounds up to 50,000 hertz. While high frequency sounds tend to be more hazardous and more annoying to hearing than low frequency sounds, most noise pollution damage is related to the intensity of the sound. Measured in decibels, noise intensity can range from zero, the quietest sound the human ear can detect, to over 160 decibels. Conversation takes place at around 40 decibels, a subway train is about 80 decibels, and a rock concert is from 80 to 100 decibels. The intensity of a nearby jet taking off is about 100 decibels. The threshold for pain, tissue damage and potential hearing loss in humans is 120 decibels. Long lasting, high intensity sounds are the most damaging to hearing and produce the most stress in humans.
Solutions to noise pollution include adding insulation and sound proofing to doors, walls and ceilings; using ear protection, particularly in industrial working areas; planting vegetation to absorb and screen out noise pollution; and zoning urban areas to maintain a separation between residential areas and zones of excessive noise.
选项
A、40 decibels.
B、90 decibels.
C、110 decibels.
D、160 decibels.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3810811.html
相关试题推荐
Accordingtotheexpert’sstudy,thelevelofhappinessinwhichperiodoflife
Accordingtotheexpert’sstudy,thelevelofhappinessinwhichperiodoflife
Thistalkmostlikelyhappens[br][originaltext][14]Iftherearenomore
Thistalkmostlikelyhappens[originaltext][14]Iftherearenomorequest
PrinceHenrystartedhisschoolto[br][originaltext]Themodernsailings
PrinceHenrystartedhisschoolto[originaltext]Themodernsailingshipwa
Manybusinessguestsliketoeatintheirrooms[br][originaltext]W:So,what
Manybusinessguestsliketoeatintheirrooms[originaltext]W:So,whatspecia
Whatdothetwopeoplemainlytalkabout?[originaltext]W:[4]Whatdoyouthink
Whatwasthewheatproductionlastyear?[originaltext]Wheatsuppliesaroun
随机试题
CommunityCollegeCommunityColleges,institution
Peoplerememberspecialgiftsorpresentsthattheyhavereceived.Why?Use
Ablindbabyisdoublyhandicapped.Notonlyisitunabletosee,butbecaus
超过20年使用期限的汽车都应当报废。某些超过20年使用期限的汽车存在不同程度的设
下列关于雨水管道水力计算参数及设计原则的说法,正确的是哪项?( )A.考虑到暴
左边给定的是纸盒外表面的展开图,右边哪一项能由它折叠而成?请把它找出来。 A.
2013年12月下旬,教育部、国家统计局、财政部发布2012年全国教育经费执行情
据中科院2012年8月中旬发布的《城市蓝皮书:中国城市发展报告NO.5》,中国城
目前疗效最为肯定的一种保护肝细胞结构和功能的药物是A.多烯磷脂酰胆碱 B.硫普
监理工程师对所监理的工程实施监理的依据有()。A.有关的技术标准 B.工程监理
最新回复
(
0
)