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Actinides in the environment: Quiz


Question 1: Low fired oxides and soluble salts such as the ________ can be absorbed with greater ease through the digestive system, so they are able to enter the bloodstream after being swallowed.

Question 2: It has been shown that ________ transport processes control the migration of Cs (and will control the migration of Pu) in the soil at the Waste Isolation Pilot Plant.
SolidColloidLiquidPlasma (physics)

Question 3: Additional uranium has been added to the environment in some locations as a result of the nuclear fuel cycle and the use of ________ in munitions.
Nuclear proliferationPlutoniumRadioactive wasteDepleted uranium

Question 4: In the environment, this plutonyl core readily complexes with ________ as well as other oxygen moieties (OH-, NO2-, NO3-, and SO4-2) to form charged complexes which can be readily mobile with low affinities to soil.
Calcium carbonateBicarbonateCarbon dioxideCarbonate

Question 5: [3] However, it is relatively mobile over the long term, and diffusion of neptunium-237 in groundwater is a major issue in designing a ________ for permanent storage of spent nuclear fuel.
Deep geological repositoryGermanyHigh-level radioactive waste managementRussia

Question 6: Aspects of their biology and environmental behaviour is discussed at ________.
Radium and radon in the environmentActinides in the environmentUranium in the environmentEnvironmental radioactivity

Question 7: It is present in almost all soils and it is more plentiful than ________, beryllium, cadmium, gold, mercury, silver, or tungsten and is about as abundant as arsenic or molybdenum.

Question 8: It is interesting to note that Harold McCluskey did not die of cancer but of ________ (which he had before the accident).
Heart diseaseCardiomyopathyMyocardial infarctionCardiovascular disease

Question 9: Thorium is found in small amounts in most rocks and soils, where it is about three times more abundant than uranium, and is about as common as ________.

Question 10: Plutonium is known to bind to soil particles very strongly, see above for a X-ray spectrscopic study of plutonium in soil and ________.


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