❓ 题目 According to the passage, why can urban heat islands be less severe when vegetation is present?
- A. A. Because plants reflect more sunlight than concrete, reducing heat absorption.
- B. B. Because vegetation releases water vapor that cools the surrounding air through evaporation.
- C. C. Because plants absorb carbon dioxide, which lowers global temperatures directly.
- D. D. Because green spaces increase humidity, which makes the air feel cooler.