1) The document contains 20 sentences using challenging vocabulary words. 2) The sentences describe a variety of scenarios involving people, animals, objects and events to demonstrate the meaning of the vocabulary words. 3) The vocabulary words include terms like iconoclasm, garrulous, eminent, impassive, verbose, intrepid, peninsula, cupidity, impetuous, ostentatious, ardent, unearthly, ethereal, exhorted, conflagration, immutable, pessimistic, debutane, diminutive, pernicious, and prate.