1. Nature has an apparently _______ source of plants that can be fruitfully exploited for the herbal cure of many diseases.   indefatigable   insuperable   insatiable   inexhaustible   iniquitous   Hint Hint       2. The students appreciated the professor's _______ style of preparing notes for the lectures because the effort in collecting vital information from various sources truly enhanced their learning.   pedantic   pedestrian   eclectic   dogmatic   esoteric   Hint       3. Legislation has been introduced in some states that requires plastic bags be made of biodegradable material which gradually _______ over a period of time when exposed to sunlight.   decomposes   subsides   ossifies   secretes   proliferates   Hint       4. Although several critics denounced his _______ techniques, there was unanimous praise for his _______ performances over the last season.   laudable..internecine   anomalous..apocryphal   innovative..mediocre   precarious..unexceptional   unorthodox..unexceptionable   Hint       5. The aria was _______ with the tempo changing continuously in a most unpredictable fashion.   capricious   cacophonous   antediluvian   abstemious   impecunious   Hint       6. Even though the region was prone to hurricanes, the _______ of the tornado last year was _______.   probity..portentous   levity..lethal   inevitability..mercurial   portent..poignant   ferocity..unprecedented   Hint       7. The _______ allowance he received as a pension forced him to spend the rest of his life in _______.   meager..penury   mundane..malady   mendacious..luxury   munificent..conundrum   magnanimous..austerity   Hint