In paragraph 3, kennedy includes these statements “the greater our knowledge increases, the greater our ignorance unfolds.” most likely because

a
kennedy is letting the audience know they don’t know anything and should go back to college.
b
kennedy is setting up his argument that people will never have the knowledge needed to get to space.
c
kennedy is presenting his speech to an audience that includes scientists and professors so he is showing respect to his audience, and acknowledging new discoveries along with how much more can be researched.
d
kennedy wants to persuade only the smart people to him make sure the united states gets to space first.

Read this passage from "the city without us" by alan weisman: which statement best explains how the structure of the passage supports the author's purpose? a. the passage traces several events in the order that they will occur to highlight how nature conquers human civilization. b. the passage shows that natural forces such as an absence of predators and an increase in the squirrel population can lead to destructive results. c. the passage shows that natural forms such as an absence of predators and human hunters can lead to the reforestation of new york city. d. the passage identifies how two natural forces are co-dependent - the deforestation of new york and the extinction of squirrels.