Logical ReasoningDifficulty: Medium

PT158 S3 Q11 ExplanationThere is evidence that a certain ancient society

A free, expert breakdown of this official LSAT Logical Reasoning question.

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Stimulus

There is evidence that a certain ancient society burned large areas of land. Some suggest that this indicates the beginning of large-scale agriculture in that society—that the land was burned to clear ground for planting. But there is little evidence of cultivation that this society was still a hunter-gatherer society.

What this question is testing

Strengthen

Conclusion

This ancient society was probably still in the hunter-gatherer phase, not farming.

Evidence

They burned huge tracts of land. Some archaeologists said: "Agriculture! They were clearing fields!" But when you look at the ground after the fires, there is no evidence anyone planted anything. So probably not agriculture.

Evaluate

The "not agriculture" part is solid — no crops after the fire is a pretty good clue. But the argument still needs to explain what hunter-gatherers were doing with all that fire. Right now it is: That last step needs a reason. If hunter-gatherers had their own reasons for large-scale burning, the conclusion gets much stronger.

Goal

Find the answer that gives hunter-gatherers a reason to play with fire on a grand scale.

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The question
11.

Which one of the following, if true, most strengthens

Answer choices, explained

  1. Weakens, If Anything3% picked this

    Many ancient cultures had agriculture before they began using fire to clear large

    If many ancient cultures had agriculture before they used fire for clearing land, this suggests that fire-based land clearing is not necessary for the emergence of agriculture — but it also suggests that the absence of fire-clearing does not rule out agriculture, and more importantly, it weakens the connection between burning and hunter-gatherer activity. However, the more direct impact is that this answer disconnects the burning evidence from any particular interpretation. If agriculture can exist without fire-clearing, the lack of post-fire cultivation is less diagnostic. More critically for strengthening purposes, this answer provides no positive reason for hunter-gatherers to burn land, which is what the argument needs.

  2. No Impact7% picked this

    Hunter-gatherer societies used fire for cooking and for heat during

    Hunter-gatherers using fire for cooking and warmth is a mundane domestic use of fire that does not explain why a society would burn "large areas of land." Campfires for cooking or heating are small-scale and localized, while the burning described in the stimulus is landscape-level. The argument needs an explanation for large-scale deliberate burning consistent with a hunter-gatherer lifestyle. Domestic fire use is universal across virtually all human societies and provides no distinguishing evidence about whether this particular society was agricultural or hunter-gatherer. Both types of society use fire for cooking and warmth, so this observation has no diagnostic value.

  3. No Impact8% picked this

    Many plants and trees have inedible seeds that are contained in hard shells and are released only when subjected to the

    The fact that some plant seeds require fire to germinate is a botanical fact about fire ecology, but it does not connect burning to either hunter-gatherer or agricultural practices in a way that strengthens the argument. If anything, it could support an agricultural interpretation: perhaps the society was burning land to trigger seed germination for planting purposes. But even that connection is speculative, and the seeds described are "inedible," which limits their relevance to either agricultural or foraging purposes. This answer provides ecological context about fire but no evidence linking large-scale burning specifically to hunter-gatherer societies.

  4. Correct80% picked this

    Hunter-gatherer societies are known to have used fire to move animal populations from one

    Why this is right

    This answer provides exactly what the argument needs: a specific, plausible reason why hunter-gatherers would burn large areas of land. If hunter-gatherer societies are known to have used fire to drive animal populations from one area to another, then the large-scale burning in the stimulus has a perfectly coherent explanation within a hunter-gatherer framework. Fire drives animals toward waiting hunters or into more accessible areas. This strengthens the argument in two ways. First, it provides a positive explanation for the burning evidence that is consistent with the hunter-gatherer hypothesis. Second, it explains why there would be no evidence of cultivation after the fires — the fires were never intended for agricultural purposes. The burning is no longer mysterious evidence needing explanation; it is expected behavior for a society that hunts game using fire as a tool.

    Skill tested: Strengthen · how this choice captures the argument's function is the move to repeat next time.

  5. No Impact3% picked this

    Few early societies were aware that burning organic material can help create

    The fact that few early societies understood burning as a fertilization technique is tangentially related to the agricultural interpretation but does not strengthen the hunter-gatherer conclusion. If early societies did not know fire creates nutrients for soil, this somewhat weakens the agricultural explanation for the burning (they would not have burned for fertilization purposes). But the agricultural interpretation in the stimulus is about clearing land for planting, not fertilizing soil, so this answer addresses the wrong agricultural motivation. More importantly, weakening the agricultural hypothesis is not the same as strengthening the hunter-gatherer hypothesis. The argument needs a positive reason for hunter-gatherers to burn land, not another reason why farmers would not have.

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