Today in our environmental science lecture, we'll discuss urban green spaces. Recent studies show that parks in cities can reduce local temperatures by up to 3 degrees Celsius during summer. This cooling effect comes from shade and water evaporation from trees. However, the size and distribution of parks matter. Small, scattered gardens have less impact than large connected areas. For example, a single large park of 10 hectares can cool surrounding streets for hundreds of meters, while many tiny plots only affect their immediate vicinity. Therefore, city planners should prioritize creating a few big parks over many small ones.
❓ ¿Qué sugiere la conferencia sobre los parques urbanos?
A. A. Los parques pequeños son más efectivos que los grandes para el enfriamiento.
B. B. Los parques grandes y conectados tienen un mayor efecto de enfriamiento en las áreas cercanas.
C. C. El efecto de enfriamiento no está relacionado con el tamaño del parque.
D. D. La evaporación del agua es el único factor en la reducción de la temperatura.
✅ 正确答案
B. Large connected parks have a greater cooling effect on nearby areas.