The process of nuclear fission______requires the use of a reactor core, around which no lithium blanket of sufficient______has been developed to contain the hazardous byproducts of the process.
A. unfortunately… breadth
B. occasionally … unreliability
C. auspiciously … size
D. fortuitously… expense
E. technically … imagination
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Which of the following hypothetical discoveries, if made, would be most likely to reduce the technical difficulties in producing plastic from organic crops
A. a source of refining fossil fuels that significantly reduces their cost to plastic manufacturers
B. a way of maintaining grain yields while producing high quantities of plastic that do not interfere with the functioning of plant chloroplasts
C. a means of reducing the clean-up cost of environmental damage wrought by CO2 and SO2 emissions
D. a means of yielding greater efficiency from coal-based fuels used in the organic plastic-production process
E. the discovery of a renewable source of plant-sugar that would lessen reliance on fossil fuels in organic plastic-manufacture
DOUBT: QUESTION ::
A. manner : technique
B. thirst: accomplishment
C. remorse: avarice
D. purposelessness : requirement
E. benevolence : gratitude
SCRUTINIZE:
A. challenge
B. protest
C. pardon
D. amplify
E. mask
PEOPLE: CROWD ::
A. cattle : herd
B. magazine: bookcase
C. staff: bureau
D. audience : theater
E. corn : grain
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