Of the following questions about earliest Native Americans, which is the most controversial among anthropologists?

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While there is still some debate and uncertainty around each of the questions listed, the timing of when Native Americans first arrived in the Americas is the most controversial and heavily debated among anthropologists. The range of opinions and theories about their arrival date vary widely, with some experts believing it happened as far back as 40,000-50,000 years ago, while others argue it was much more recent, at around 15,000-20,000 years ago. It's a challenging question to answer definitively because there is limited evidence and conflicting data to support different hypotheses.

Of the Following Questions About Earliest Native Americans, Which Is