Today in our environmental science lecture, we're discussing urban green spaces. While many assume parks mainly improve air quality, recent studies highlight their role in mental health. A 2021 survey in Melbourne found that residents living within 500 meters of a park reported 20% lower stress levels. Interestingly, the size of the park mattered less than its accessibility. Small pocket parks with benches and walking paths had a stronger positive effect than large, distant reserves. So, city planners should prioritize creating smaller, well-connected green areas in dense neighborhoods, rather than focusing solely on large parks on the outskirts.
❓ According to the lecture, what did the 2021 survey in Melbourne reveal about urban green spaces?
A. A. Large parks improve air quality more than small ones.
B. B. Accessibility of parks is more important than their size.
C. C. Residents near parks had higher stress levels.
D. D. Pocket parks are only beneficial in suburban areas.
✅ 正确答案
B. Accessibility of parks is more important than their size.