Answer: The paragraph discusses the benefits of NASA's space program and the importance of preserving it. The author, Roger T. Reynolds, expresses a positive and enthusiastic tone about the topic.Three words or phrases from the paragraph that express the author's tone are "worth preserving at any cost," "huge dividends," and "hope to our increasingly overcrowded planet." These phrases indicate that the author believes that the benefits of the space program are significant and far-reaching. The use of phrases such as "huge dividends" and "hope" demonstrates the author's optimism and enthusiasm for the space program.Overall, the author's tone is positive and encouraging. The author presents a strong argument for the benefits of NASA's space program and emphasizes the need to continue to invest in space exploration.
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