Passage A
For decades, urban planners treated the sonic environment of cities as a nuisance to be suppressed—a relentless byproduct of industrial vitality to be muffled behind sound barriers. Yet this architectural reductionism overlooks the deep cultural significance embedded in urban soundscapes. Cities possess auditory identities as distinct and vital as their visual skylines. The rhythmic clatter of streetcars, the reverberant echo of historic market squares, and the ambient murmur of neighborhood plazas form an intangible acoustic heritage that shapes civic identity and collective memory. When municipal policies focus exclusively on decibel reduction through uniform acoustic dampening, they risk flattening the rich textural character of urban life. A vibrant city should not aspire to sound like a suburban library; rather, soundscape management must recognize sound as a dynamic medium of social interaction and historical continuity. Preserving these acoustic landmarks requires framing urban sound not merely as potential noise pollution, but as a living cultural resource deserving of thoughtful curation.
Passage B
Recent bioacoustic research underscores the severe ecological consequences of anthropogenic noise on urban wildlife populations, particularly songbirds and amphibians. High levels of low-frequency urban noise interfere directly with vocal communication, forcing species to alter their acoustic signals by pitching calls higher or singing at elevated volumes. These vocal adjustments carry substantial metabolic costs and frequently impair acoustic territory defense and mate attraction. Furthermore, persistent acoustic disruption elevates baseline corticosterone levels in animals, precipitating chronic physiological stress and reproductive decline. While urban planners historically evaluated sound primarily through the lens of human annoyance or architectural aesthetics, empirical ecological data demand a fundamental shift in perspective. Anthropogenic sound is not an aesthetic nuance but a pervasive sensory pollutant that restructures urban ecosystems and drives local biodiversity loss. Mitigating these ecological disruptions requires stringent acoustic zoning, structural sound abatement, and the expansion of quiet corridors within municipal green spaces.
Which of the following best characterizes the fundamental difference in perspective between the author of Passage A and the author of Passage B regarding urban sound?
- The author of Passage A conceptualizes urban sound as a valuable component of human cultural identity, whereas the author of Passage B views it as a harmful sensory pollutant disrupting biological ecosystems.Answer
- BThe author of Passage A advocates for absolute silence in public spaces, while the author of Passage B promotes industrial noise expansion in urban green spaces.
- CThe author of Passage A evaluates urban sound purely through technical decibel measurements, whereas the author of Passage B prioritizes subjective aesthetic preferences over data.
- DBoth authors agree that municipal sound dousing is harmful, but the author of Passage A prioritizes economic productivity while the author of Passage B prioritizes residential real estate value.