Today in our environmental science lecture, we'll discuss urban green spaces. A recent study in Melbourne found that adding parks and community gardens to city centers can reduce local temperatures by up to 3 degrees Celsius during summer heatwaves. Interestingly, the cooling effect is strongest within 200 meters of the green area, and it also improves air quality by filtering particulate matter. However, the researchers noted that the benefits depend on regular maintenance, especially watering trees during dry periods. So, while green infrastructure is valuable, it requires ongoing investment from city councils.
❓ 강의에 따르면, 도시 녹지 공간이 냉각 효과를 제공하기 위한 핵심 조건은 무엇인가요?
A. 그들은 주거용 건물 근처에 위치해야 한다.
B. 그들은 가뭄 중 물 주기와 같은 일관된 관리가 필요합니다.
C. 그들은 200제곱미터보다 커야 합니다.
D. 그들은 공원과 커뮤니티 정원을 모두 포함해야 합니다.
✅ 正确答案
They need consistent care, such as watering during droughts.