Good morning, everyone. Today, I'd like to continue our discussion on urban planning. We've talked about the importance of green spaces, but let's focus on a specific challenge: the 'heat island' effect. In cities, concrete and asphalt absorb heat during the day and release it at night, making urban areas significantly warmer than surrounding rural areas. One effective solution is to increase the number of parks and rooftop gardens. However, a recent study in Manchester found that while parks help cool their immediate vicinity, their effect diminishes beyond about 300 meters. Therefore, planners should distribute smaller green spaces throughout neighborhoods rather than concentrating them in one large central park.
❓ According to the lecture, what did the study in Manchester reveal about parks?
A. A. Parks are most effective when concentrated in one large central area.
B. B. The cooling effect of parks is limited to a short distance from the park.
C. C. Rooftop gardens are more effective than parks in reducing heat.
D. D. Urban areas are cooler than rural areas due to green spaces.
✅ 正确答案
B. The cooling effect of parks is limited to a short distance from the park.