首页
登录
职称英语
The most pressing nuclear energy issue is the disposal of nuclear waste. Eve
The most pressing nuclear energy issue is the disposal of nuclear waste. Eve
游客
2023-07-05
47
管理
问题
The most pressing nuclear energy issue is the disposal of nuclear waste. Even if all the reactors in existence were completely safe to operate, there would still be unsolved issue of what to do with the waste from generating electricity by means of nuclear energy. Those who claim that they feel comfortable with nuclear energy are, none the less, concerned about waste disposal methods. Seven states, including California, have put the building of nuclear plants on hold until legislators are convinced that there is a safe way to dispose of the radioactive waste from the plants.
In the meantime, pools of liquid waste and piles of solid waste from private industry and governmental bomb production grow. Since 1962, the volume of radioactive waste produced by the nuclear power industry has amounted to about 4,300 cubic meters. By the end of the twentieth century, if production continues at the same rate, there will be 40,000 cubic meters of nuclear waste.
Power plants and bomb-making are not the only sources of waste. Uranium mining and milling operations have dumped 24 million metric tons of radioactive tailing wastes at dumping sites around the nation. At places where uranium is currently milled, there is another 100 million metric tons of tailings. Uranium tailings are solid materials in the slurry(or watery mixture)of depleted ore-bearing rock, chemicals, and liquids that result from milling. Usually, the slurry is piped to holding ponds. When a uranium mill goes out of business, the ponds are left to
evaporate
, uncovering piles of dried tailings. Uncovered piles of tailings give off radioactive radon gas. Once in the air, the gas finds its way into the water supply and the food chain. Consequently, many nuclear experts agree that uranium mill tailings may be more dangerous than high-level radioactive wastes from reactors and bombs. [br] It can be inferred from the passage that the most dangerous by-product of uranium mining and milling is______.
选项
A、solid mining wastes
B、the slurry in which the waste is stored
C、the radon gas that is emitted by the waste
D、the uranium that is recovered in the mining operations
答案
C
解析
推断题。选项中的内容在文中均有提及,但是从危害性上讲,选项A、B、D都没有直接说到它们的害处,而文中第三段讲到Uncovered piles of tailings give off radioactive radon gas.Once in the air,the gas finds its way into the water supply and thefood chain.故可推断出这种放射性气体才是最有害的。故选项C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/2810068.html
相关试题推荐
[originaltext]Economistsacrosstheworldareexpressingconcernsaboutris
[originaltext]M:(12)TheEnergyMinisterannouncedyesterdaytheconstructionof
[originaltext]M:(12)TheEnergyMinisterannouncedyesterdaytheconstructionof
[originaltext]M:(12)TheEnergyMinisterannouncedyesterdaytheconstructionof
[originaltext]M:(12)TheEnergyMinisterannouncedyesterdaytheconstructionof
[originaltext]Economistsacrosstheworldareexpressingconcernsaboutris
Themostpressingnuclearenergyissueisthedisposalofnuclearwaste.Eve
Themostpressingnuclearenergyissueisthedisposalofnuclearwaste.Eve
[originaltext]Nuclearradiationhasacertainmysteryaboutit,partlybeca
[originaltext]Nuclearradiationhasacertainmysteryaboutit,partlybeca
随机试题
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpi
案例:某工地工人在拆现浇楼板钢模时,审批手续还未办好,由于面积大,一时拆不完,中
A.白细胞升高 B.腓肠肌痛明显 C.口腔内有科普利克斑 D.血液涂片是常
动脉导管未闭血流动力学的改变首先是引起A.左心房增大 B.左心室增大 C.右
健康的肉芽是:A.鲜红色 B.对细菌的侵入有抵抗力 C.触之易出血
在危险房屋造成损害的事故中,房屋使用人、行为人应当承担的责任有()A:使用人擅自
( )在《商业学刊》上发表了一篇题为《股票市场价格行为》的论文,并在1970年深
阿胶的主治病证有A.血虚萎黄,心悸眩晕 B.咳血衄血,便血崩漏 C.阴虚燥咳
眼用制剂中,需要检查金属性异物的剂型是()A.滴眼剂 B.洗眼剂 C.
下列关于施工总承包资质的单位承担工程项目全过程管理业务的说法,正确的是()A、在
最新回复
(
0
)