Today in our environmental science lecture, we'll discuss urban green spaces. Recent studies show that parks in cities can reduce local temperatures by up to 3 degrees Celsius during summer. This cooling effect comes from shade and water evaporation from trees. However, the size and distribution of parks matter. Small, scattered gardens have less impact than large connected areas. For example, a single large park of 10 hectares can cool surrounding streets for hundreds of meters, while many tiny plots only affect their immediate vicinity. Therefore, city planners should prioritize creating a few big parks over many small ones.
❓ 강의는 도시 공원에 대해 무엇을 시사하는가?
A. A. 작은 공원이 큰 공원보다 냉각 효과에 더 효과적이다.
B. B. 대규모로 연결된 공원은 주변 지역에 더 큰 냉각 효과를 미친다.
C. C. 냉각 효과는 공원 크기와 무관하다.
D. D. 수분 증발만이 온도 감소의 유일한 요인이다.
✅ 正确答案
B. Large connected parks have a greater cooling effect on nearby areas.