Today in our environmental science lecture, we'll discuss the impact of urban green spaces. A recent study monitored two parks in Manchester over a year. The first park, with native trees, attracted 30% more bird species than the second, which had ornamental plants. However, the second park showed higher insect diversity, likely due to its varied flowering plants. Interestingly, both parks had similar noise levels, but visitors reported feeling more relaxed in the native-tree park. This suggests that biodiversity alone doesn't determine human perception; tree cover and shade play a key role.
❓ 关于拥有原生树木的公园，研究发现了什么？
A. A. 它的昆虫多样性高于另一个公园。
B. B. 它吸引了更多种类的鸟类，但感到放松的游客却更少了。
C. C. 它有更多的鸟类物种，游客们感到更加放松。
D. D. 噪音水平相似，但树木覆盖率较低。
✅ 正确答案
C. It had more bird species and visitors felt more relaxed.