For centuries, scholars believed that cedar oil preserved ancient papyrus manuscripts solely due to its natural antimicrobial properties. However, chemist Linnea Harrison and colleagues recently discovered that cedar oil also undergoes polymerization when exposed to dry air, forming a solid, moisture-resistant barrier that physically seals the plant fibers. Crucially, the researchers noted that high humidity inhibits this polymerization process, leaving the papyrus vulnerable to moisture-driven decay. Therefore, while cedar oil can prevent microbial damage in diverse climates, its physical sealing effect on papyrus is likely _______
Which choice most logically completes the text?
- Aless effective than its antimicrobial properties at preserving the fibers.
- Benhanced by the addition of synthetic chemical sealants.
- compromised if the manuscript is stored in a humid environment.Cevap
- Dcompletely absent regardless of the surrounding atmospheric conditions.
Cevap
The physical sealing effect of the cedar oil is likely compromised if the manuscript is stored in a humid environment.
The passage establishes that the physical sealing of papyrus fibers by cedar oil is achieved through polymerization, which occurs in dry air. It also notes that high humidity inhibits this polymerization. Therefore, it can be logically inferred that the physical sealing effect will be compromised if the manuscript is kept in a humid environment.
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Logical Inferences