Question

read the following excerpt from president john f. kennedy’s \we choose to go to the moon\ speech. then, answer the question that follows.... we meet in an hour of change and challenge, in a decade of hope and fear, in an age of both knowledge and ignorance. the greater our knowledge increases, the greater our ignorance unfolds. which rhetorical device does kennedy use to support his argument? antithesis: he is using contrasting ideas to emphasize the uncertainty of space exploration irony: he is saying the opposite of what he means about space exploration rhetorical question: he is stating something about space exploration in the form of a question zeugma: he is using figurative language to emphasize a literal and figurative meaning

Explanation:

The excerpt pairs contrasting ideas: "change and challenge", "hope and fear", "knowledge and ignorance", and the core contrast of greater knowledge bringing greater ignorance. Antithesis is defined as using contrasting ideas for emphasis, which matches this structure. The other devices do not fit: irony uses opposite meaning, rhetorical questions are framed as questions, and zeugma links one word to multiple meanings.

Answer:

Antithesis: he is using contrasting ideas to emphasize the uncertainty of space exploration