Today in our environmental science lecture, we'll discuss the impact of urban green spaces. A recent study in Melbourne examined three parks over a year. Researchers measured temperature, noise levels, and biodiversity. Surprisingly, the smallest park, though only two hectares, had the highest bird species diversity. This was due to its variety of native shrubs and an old pond. However, the largest park, at ten hectares, showed the greatest cooling effect, reducing nearby temperatures by up to three degrees Celsius. The study concluded that size matters for cooling, but habitat complexity is key for wildlife.
❓ What did the study find about the smallest park in Melbourne?
A. A. It had the greatest cooling effect on the surrounding area.
B. B. It supported the highest number of bird species among the parks.
C. C. It was the largest park studied, covering ten hectares.
D. D. It had the lowest noise levels due to its dense shrubs.
✅ 正确答案
B. It supported the highest number of bird species among the parks.