Okuma AnlamaSoru #8974
Urban Heat Islands and Biophilic Mitigation
Urban heat islands occur when cities replace natural vegetation with dense concentrations of pavement, concrete buildings, and asphalt. These artificial surfaces possess high thermal mass, absorbing solar heat during the day and radiating it slowly at night. In addition, urban geometry creates "canyon effects" between tall buildings, which trap warmth and obstruct cooling wind currents. Anthropogenic heat generated by vehicular traffic, industrial plants, and building air conditioning units further exacerbates temperature spikes. Consequently, urban downtown cores often register daytime temperatures several degrees higher than adjacent rural hinterlands, with nocturnal temperature differences reaching up to ten degrees Celsius. This prolonged thermal stress has profound socioeconomic and public health consequences. Vulnerable demographics, particularly elderly citizens and low-income neighborhoods lacking green infrastructure, suffer disproportionate rates of heat exhaustion and cardiovascular distress. Furthermore, elevated temperatures skyrocket municipal electricity consumption as residential air conditioning operates continuously, paradoxically pumping even more waste heat into outdoor streets. To counteract this perilous cycle, urban architects are championing biophilic design strategies, including green rooftops, reflective "cool pavements," urban forestry, and restored riparian corridors that dissipate heat through shade and evapotranspiration. The passage notes that the temperature gap between cities and countryside is ----.
- A)entirely negligible during summer heatwaves
- B)most pronounced at night, sometimes differing by up to ten degrees Celsius
- C)reversed during winter months when rural areas become hotter than cities
- D)caused exclusively by high-altitude jet stream weather disturbances
- E)eliminated whenever automobile traffic is prohibited on weekends
Cevabı ve çözümü göster
Doğru cevap: B) most pronounced at night, sometimes differing by up to ten degrees Celsius
Çözüm: Metinde "...with nocturnal temperature differences reaching up to ten degrees Celsius" (gece sıcaklık farklarının 10 dereceye kadar ulaşmasıyla) ifadesi açıkça yer alır. Doğru cevap B'dir.