Today, in our environmental science lecture, we'll discuss the impact of urban farming. One key point is that rooftop gardens can reduce a building's energy consumption by up to 25% because they provide natural insulation. However, the initial cost of setting up such a garden is often high, and maintenance requires regular watering, especially in dry seasons. A study in Chicago found that community gardens also improve local air quality, but they need at least two years to show measurable effects. So, while the benefits are clear, planning and investment are crucial.
❓ 강의에 따르면, 옥상 정원의 주요 이점은 무엇인가요?
A. A. 그들은 단열을 제공함으로써 에너지 사용을 줄입니다.
B. B. 설치 후에는 물이 거의 필요하지 않습니다.
C. C. 그들은 즉시 지역 대기 질을 개선합니다.
D. D. 초기 설치 비용이 저렴하다.
✅ 正确答案
A. They reduce energy use by providing insulation.