I think you have a typo in your question.
Answer:
they contain clues about the article's purpose and topics.
Explanation:
you can't tell how long the article would be from the first paragraph
you can't compare the article to others if you only read the first paragraph
you can't summarize the article based on the first paragraph
Answer:
<h2> </h2><h2>The article is a emotionally charged tone </h2><h2>( argumentative tone ) . A argumentative artical is based on a person's opinion and is driven by their thoughts . This shown when the author wrote , " NASA'S space program is worth preserving at any cost . " this shows </h2><h2>that author personally believe that the Space Station needs to be preserved therefore their tone is argumentative since they are trying to prove their </h2><h2>opinion to be right. this is also presented when the author stated all of these activities of our hope to over increasingly overcrowded planet" and it is impossible to</h2><h2> list all the benefits of a thriving space program." </h2><h2 /><h2>Hence, all of these examples show that the author has taken a strong opinion on the matter. this therefore makes their tone argumentative and emotionally based.</h2><h2 />
The answer is True that the author's selections give unity to his novel.
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