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Zorluk: Çok zorIdentifying Underlying Assumptions

Archaeobotanical excavations at the high-altitude Andean settlement of Qullpa revealed a dramatic increase in charred cultivated quinoa seeds in soil strata dating to approximately 1000 CE, alongside a marked decrease in recovered wild game bones from the same layer. Paleoclimatic data indicate that the region experienced a prolonged drought beginning around 1000 CE. Researchers conclude that this climate shift forced the inhabitants of Qullpa to abandon their previously balanced hunting-and-gathering subsistence strategy in favor of intensive quinoa cultivation. Which of the following is an assumption on which the researchers' conclusion depends?

  1. The increase in recovered quinoa seeds relative to animal bones in the post-1000 CE strata does not primarily reflect changes in food processing techniques that made crop remains far more likely to be preserved than animal remains.Cevap
  2. B
    Intensive quinoa cultivation yields significantly more calories per square meter than hunting wild game in high-altitude Andean ecosystems.
  3. C
    Wild game populations surrounding Qullpa did not experience a catastrophic decline prior to 1000 CE due to overhunting by neighboring lowland groups.
  4. D
    The inhabitants of Qullpa did not cultivate any food crops prior to the onset of the drought in 1000 CE.
  5. E
    Nearby lowland settlements experiencing the same drought also adopted intensive quinoa cultivation during the same period.

Cevap

The researchers' conclusion depends on the assumption that the increase in recovered quinoa seeds relative to animal bones does not primarily reflect changes in food processing techniques that made crop remains far more likely to be preserved than animal remains.
The conclusion relies on interpreting the physical artifact ratio (more quinoa seeds, fewer game bones) as proof of a true shift in subsistence practices. For this evidence to be valid, the researchers must assume that the shift in recovered artifact proportions is not simply an artifact of differential preservation caused by altered food preparation or disposal methods. Applying the Negation Test confirms this: if processing changes caused quinoa seeds to preserve much better than bones after 1000 CE, the physical evidence no longer supports a change in actual diet, thereby breaking the argument.

Adım Adım Çözüm

1
Deconstruct the argument structure into premises and conclusion.
Premises: 1. Strata from 1000 CE show more charred quinoa seeds and fewer wild game bones. 2. Climate data show a prolonged drought starting around 1000 CE. Conclusion: The drought forced inhabitants to shift from hunting/gathering to intensive quinoa agriculture.
Isolating the logical jump between physical artifact counts and actual prehistoric human behavior is necessary to identify unstated assumptions.
2
Identify potential alternative explanations for the evidence.
The physical ratio of recovered artifacts could change without a change in diet if the preservation conditions or processing methods changed.
An assumption must bridge the gap by ruling out alternative explanations that would render the premise evidence unrepresentative of the conclusion.
3
Apply the Negation Test to the candidate assumption.
Negated statement: 'Changes in food processing techniques after 1000 CE DID make crop remains far more likely to be preserved than animal remains.' If true, the higher seed count is an artifact of preservation bias, completely undermining the conclusion that dietary reliance shifted.
If negating a statement invalidates the argument's conclusion, that statement is a necessary underlying assumption.

Anahtar Kavram

Identifying Underlying Assumptions via the Negation Test
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Konular

Identifying Underlying Assumptions

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