1. She was _______ liar who had mastered the art of making untrue statements in a manner they sounded _______.   a congenital..creditable   a mundane..credulous   a convincing..illogical   an incorrigible..plausible   a blatant..incongruous   Hint Hint       2. Scientific investigations of fluid flow behavior around objects like high-speed aircrafts are complex; however, the systems are _______ when experiments are performed in scaled-down versions such as wind tunnels.   implacable   turbulent   tractable   permeable   malleable   Hint       3. The air-conditioning unit was operated so as to strike some balance between the danger of _______ electricity bills and the desire of employees to be comfortable during the summer months.   optimum   exigent   prudent   inchoate   inordinate   Hint       4. This _______ verse mourns for the valiant soldiers who lost their lives in the battle.   ironic   desultory   elegiac   satiric   derivative   Hint       5. The _______ allowance he received as a pension forced him to spend the rest of his life in _______.   mendacious..luxury   magnanimous..austerity   munificent..conundrum   meager..penury   mundane..malady   Hint       6. The senior professor was _______ thinker who believed in doing even tedious calculations by hand rather than using a computer.   a doctrinaire   a cogent   an insensible   an eclectic   an ingenuous   Hint       7. Any increase in coal-fired furnaces beyond a particular level necessitates greater _______ the fossil fuels; thus, the capability of an economy to effectively manage energy resources depends partially on _______ the number of industrial fired heaters.   expenditure on..budgeting   trust in..enhancing   yield from..conforming   depletion of..renewing   recourse to..restricting   Hint