Question

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Explanation:

To determine which sentence provides specific facts as evidence, we analyze each option:

• The first option ("In the United States...") compares fire knowledge now vs. a century ago, but it's a general comparison without specific factual details about fire's role or history.
• The second option ("Places that had known...") describes places with regular fire over time and what happened when fires vanished, but it's more descriptive of a pattern than specific facts.
• The third option ("Human history is lumpy...") is a metaphorical or thematic statement about human history and fire, not a factual evidence statement.
• The fourth option ("Pre - Columbian peoples fired...") gives specific actions (fired along routes, burned patches) and specific resources (llamas, deer, huckleberries, maize) related to how Pre - Columbian peoples used fire. This provides concrete, specific factual evidence about the use of fire, which supports the article's main idea about fire's history and use.

Answer:

The option "Pre - Columbian peoples fired along routes of travel, and they burned patches where flame could help them extract some resource—llamas, deer, huckleberries, maize." (the fourth option in the list)