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🎧 Listening Transcript

Today in our environmental science lecture, we're discussing the impact of urban development on local ecosystems. One key point is the loss of green spaces, which affects biodiversity. For example, a recent study in Manchester found that the number of bird species decreased by 20% over a decade due to new housing projects. However, the introduction of rooftop gardens in some areas helped to partially offset this decline, attracting insects and small birds again. So, while urban growth is inevitable, careful planning with green infrastructure can mitigate some negative effects.
❓ การศึกษาที่แมนเชสเตอร์เปิดเผยอะไรเกี่ยวกับผลกระทบของโครงการที่อยู่อาศัย?

✅ 正确答案

B. They caused a 20% decrease in bird species over ten years.

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