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
62
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
WithoutthehelpofmyEnglishteacher,I(win)______thefirstprizeintheEngl
[originaltext]M:So,whatareyourthoughtsonthisproject?Tobehonest,I’m
HelicopterMomsVS.Free-RangeKidsA)Wouldyouletyourfourth-
计算下列人均经济总量指标时,分母不会采用年末人口的是()。A.人均汽车保有量
A.急症手术行胆总管引流 B.急症手术行腹腔引流 C.胆囊切除 D.胆囊造
下列说法中,正确的是( )。A.大赦既赦其刑,又赦其罪B.特赦只赦其刑
2004年《巴塞尔新资本协议》的主要内容有()。A.构建了“三大支柱”的监管框
A.麻黄 B.菊花 C.白芍 D.黄芪 E.川芎既能上行头目祛风止痛,又
下列各项中,属于在设计进一步审计程序时应当考虑的因素有()。A.收费的高低
依据《中华人民共和国环境噪声污染防治法》,在城市人民政府已经划定的限制建设噪声敏
最新回复
(
0
)