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Zorluk: OrtaStrengthening Arguments

Conservators at a national museum suspect that a famous seventeenth-century oil painting suffered discolored fading primarily due to historical exposure to trace hydrogen sulfide gas released by nineteenth-century coal heating systems. To prevent further chemical degradation, the museum plans to install specialized ambient air filtration units designed to absorb hydrogen sulfide gas from the gallery. The head curator concludes that installing these units will effectively halt the ongoing chemical discoloration of the painting.

Which of the following, if true, provides the strongest support for the head curator's conclusion?

  1. Air quality sensors in the gallery have recently measured continuous trace levels of hydrogen sulfide entering the building from outside vehicle exhaust.Cevap
  2. B
    The proposed chemical filtration units emit low concentrations of nitrogen dioxide gas as an operational byproduct, a compound known to accelerate paint binder breakdown.
  3. C
    Other seventeenth-century paintings created in the same geographic region relied on plant-based organic pigments that are unaffected by sulfur compounds.
  4. D
    The total operational cost of installing and maintaining the ambient filtration units is substantially lower than hiring a team of art restoration experts.
  5. E
    Coal heating systems utilized during the nineteenth century produced higher concentrations of airborne particulates than modern gas heating systems do.

Cevap

The argument is most strongly supported by the statement indicating that air quality sensors in the gallery have recently measured continuous trace levels of hydrogen sulfide entering the building from outside vehicle exhaust.
The curator concludes that filtering hydrogen sulfide will halt ongoing discoloration. For this plan to succeed, hydrogen sulfide must currently be present in the gallery environment. Demonstrating that modern vehicle exhaust introduces continuous trace levels of hydrogen sulfide into the gallery confirms that an active threat exists for the filters to neutralize, directly supporting the conclusion.

Adım Adım Çözüm

1
Deconstruct the argument into premise and conclusion.
Premise: The painting suffered past damage from hydrogen sulfide gas, and the museum plans to install units that filter hydrogen sulfide from gallery air. Conclusion: The filtration units will halt the painting's ongoing discoloration.
Identifying the logical leap helps isolate unstated assumptions.
2
Identify the critical gap in reasoning.
The argument assumes that hydrogen sulfide is currently present in the gallery air and actively contributing to ongoing discoloration. If no hydrogen sulfide is present today, filtering it will have no effect on current discoloration.
A strengthening option must bridge this gap by confirming that hydrogen sulfide remains an active threat in the gallery.
3
Evaluate the choices against the logical gap.
The option establishing that sensors currently detect hydrogen sulfide from vehicle exhaust confirms that the gas is actively present today, making the filtration units effective at halting the ongoing damage.
Supplying missing evidence of a current hazard directly validates the curator's prediction.

Anahtar Kavram

Strengthening Causal Plans by Confirming Present-Day Hazard
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