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📖 Reading Passage

The phenomenon of urban heat islands (UHIs) has garnered significant attention in climate research due to its implications for energy consumption and public health. UHIs occur when metropolitan areas experience higher temperatures than their rural surroundings, primarily because of the prevalence of heat-absorbing materials such as concrete and asphalt, coupled with the reduction of vegetation. Recent studies indicate that the intensity of UHIs is exacerbated by anthropogenic heat release from transportation and air conditioning systems. Moreover, the spatial configuration of cities, including building density and street geometry, can impede natural ventilation, further elevating temperatures. Mitigation strategies, such as increasing green spaces and implementing cool roofs, have been proposed, but their effectiveness varies with local climate and urban morphology. Understanding these interactions is crucial for developing sustainable urban planning policies aimed at reducing thermal discomfort and energy demand.
❓ จากบทความ ข้อใดต่อไปนี้เป็นสาเหตุหลักของปรากฏการณ์เกาะความร้อนในเมือง

✅ 正确答案

The prevalence of heat-absorbing surfaces and reduced vegetation

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