Is this a run-on sentence, yes or no?

Based on thoreau's transcendental beliefs, why might he have written an essay opposing the war? to explain the individual's responsibilities within a corrupt society to begin his own political career to call attention to the ways in which the government was essentially good to express his lack of interest in societal issues

Read this sentence:somebody save the smoke! the nomadic tribes move to a new location each season. which word provides a clue to the meaning of nomadic? new season move location

Which sentence uses all its nominative case pronouns correctly? a we live on the same street b them and rachel are good skaters. c the redskins fans in the family are fred and me d have joanne and him played tennis together before?