In the preface from The Pluto Files, Tyson writes that Pluto has a "remarkable grip on the hearts and minds of the American public." In the NPR interview, he jokingly says that he's blaming Disney and Mickey's dog, Pluto, for America's fascination. Why do you think he takes a more lighthearted tone during the NPR interview?

Answer and Explanation:

He takes on a more cheerful tone to make the interview more "palatable" to the public, that is, he knows that the interview is seen and heard by the most different types of audience, so to make the interview lighter and more comprehensive for everyone, allowing his words reach the most varied types of people, he prefers to use a funnier and more relaxed tone, allowing empathy between him and the audience and a greater acceptance of the ideas he has to speak.

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lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.