Today in our environmental science lecture, we'll discuss urban heat islands. A recent study in Melbourne found that parks and green roofs can reduce local temperatures by up to 3 degrees Celsius. However, the effect is strongest within 500 meters of the green area. Interestingly, the cooling benefit is more noticeable at night than during the day, because vegetation releases stored moisture. The study also highlighted that tree canopy coverage is more effective than grass alone. So, for city planners, prioritizing tree planting in densely built areas is key.
❓ 강의에 따르면, 멜버른에서 진행된 연구는 녹지 지역의 냉각 효과에 대해 무엇을 발견했습니까?
A. A. 그것은 낮 시간 동안 가장 강하다.
B. B. 공원 반경 100미터 이내에서만 작동합니다.
C. C. 밤과 500미터 이내에서 더 두드러집니다.
D. D. 잔디는 냉각 효과에 있어 나무 캐노피보다 더 효과적이다.
✅ 正确答案
C. It is more noticeable at night and within 500 meters.