One reason that multiple approaches are often taken to answer a testable question is that scientists have different educational backgrounds and experiences.
• want to determine the single best way to find an answer.
often look for the quickest way to answer the question.
get tired of using the same approach every single time.

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answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them