What is the purpose of the ad in the eresource document?

How you think your hometown would look without electricity? explain in one paragraph

Which pair of uses of figurative language from "the caged bird" support the extended metaphor of freedom versus oppression? back of the wind; floats downstream his wings are clipped; his feet are tied the caged bird sings; the free bird thinks dawn bright lawn; grave of dreams

Answer the question on the screen plzzz