首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
" Two hundred eight million, two hundred nine million, two hundred ten million..." That is the sound of solid waste hitting the
" Two hundred eight million, two hundred nine million, two hundred ten million..." That is the sound of solid waste hitting the
admin
2014-01-13
19
问题
" Two hundred eight million, two hundred nine million, two hundred ten million..." That is the sound of solid waste hitting the bottom of garbage cans all over United States in 1996. Solid wastes are materials that are discarded or thrown away after use by consumers and businesses. This does not include fluid materials. During that year, Americans threw away 210 million tons(about 43 pounds/20 kilograms per person daily)of garbage. We throw away 12. 4 million tons of glass and about 80 million tons of paper products. America also throws away large amounts(in tons)of food scraps, yard wastes, plastics, sludge from sewage treatment plants, and other materials. That is almost a mountain of garbage.
Even though we make an effort to recycle and compost our solid waste, the amount of how to keep it from polluting our environment. If solid waste is disposed of incorrectly, it can contaminate our surface and underground water supplies. Currently, our municipal waste or waste collected by our cities and towns, goes to landfills. Today, about 85% our garbage goes to landfills or garbage dumps. This waste must be treated to keep rats, flies and other animals from building their home in the landfills. The treat also prevents the growth of bacteria and other organism that carry diseases. So, how do we handle this mountain of garbage? Scientists have come up with different methods for handling our waste problem.
One type of waste disposal called sanitary landfill was first used in Fresno California, in 1937. In sanitary landfill, the solid waste is spread in thin layers that compacted and covered with a layer of earth. This is a more expensive method, but it takes away the hazards that are caused by landfills. It also allowed the land to be used for building or recreation. The negative of the landfills is that it’s tough to find open land and this process is very expensive. The land also needs its water sources protected so that the water will not pollute the water supply. Landfill(water dumps)and sanitary landfills rely on the natural biodegradability of the solid wastes. Solid wastes are biodegradable if they can decay or break down through the action of living organisms and return to the earth. However certain materials take longer to decay than others, and some materials do not decay or decompose at all. Scientists need to find other methods of waste disposal. Incineration and recycling are methods that are currently in use today.
This passage is about disposal problem of solid waste______.
选项
A、by consumers
B、in California
C、by municipal government
D、in America
答案
D
解析
事实细节题。从文章第一段中“the sound of solid waste hitting the bottom of garbage cans all overUnited States”可知,文中主要提到美国的垃圾排放量。故答案为D。
转载请注明原文地址:https://jikaoti.com/ti/zuOYFFFM
0
考博英语
相关试题推荐
ByaboutA.D.500theMoundBuilderculturewasdeclining,perhapsbecauseofattacksfromothertribesorperhapsbecauseofs
Bondsincludegovernmentsecuritiesandcorporatebonds.Governmentsecuritiesareissuedbythefederalgovernmentorbyastat
Twotechniqueshaverecentlybeendevelopedtosimplifyresearchandreducethenumberofnonhumanprimatesneededinstudiesof
Inaperfectlyfreeandopenmarketeconomy,thetypeofemployer—governmentorprivate—shouldhavelittleornoimpactonthee
SomeAfricanAmericanshavehadaprofoundimpactonAmericansociety,changingmanypeople’sviewsonrace,historyandpolitic
Futuristshaveidentifiedtwochangesthatseemtobecentraltocontemporarysociallife.First,theUnitedStatesisbeingres
Althoughmostpeoplereturnfrompackageholidaysreasonablysatisfied,thisisnotalwaysthe【C1】______.Take,forinstance,th
Religionconsistsofconsciousideas,hopes,enthusiasms,andobjectsofworship;itoperatesbygraceandflourishesbyprayer.
Religionconsistsofconsciousideas,hopes,enthusiasms,andobjectsofworship;itoperatesbygraceandflourishesbyprayer.
Newtechnologylinkstheworldasneverbefore.Ourplanethasshrunk.It’snowa"globalvillage"wherecountriesareonlyseco
随机试题
爱岗敬业的具体要求是()。
Bionicsisarecentlydevelopedbranchofscience,whichhastremendouspotentialforimprovingthelifeofmankindinourconte
丹毒的致病菌为
某单层木器厂房为砖木结构,屋顶承重构件为难燃性构件,耐火极限为0.5h;柱子采用不燃性构件,耐火极限为2.50h。木器厂房建筑面积为4500m2,其总平面布局和平面布置如下图所示;木器厂房周边的建筑,面向木器厂房一侧的外墙上均没有门和窗。该木器厂房采用流水
江苏环球国际贸易有限公司(320196××××)受南京××大学(3201990000)委托向海关申报进口设备一批,装载货物的运输工具于2009年3月29日申报进境。2009年4月2日江苏环球国际贸易有限公司持入境货物通关单(编号:3201001091542
以不同资产类别的收益情况与投资人的风险偏好、实际需求为基础,构造一定风险水平上的资产比例,并保持长期不变。这种资产配置方式是()。
垄断组织获取垄断利润的主要手段是垄断技术。()
治安管理处罚的原则是()。
内部网关协议包括()。
Thesunroseuponatranquilworld,andbeameddownuponthepeacefulvillagelikeabenediction.Breakfastover,AuntPollyhad
最新回复
(
0
)