| 1. | _______________ Environmental protection【環境保護】 is the practice of protecting the natural environment by individuals【個人】, organisations【機構】 and governments. |
| 2. | _______________ Recycling is the process【過程】 of converting【轉化】 waste materials【廢棄物料】 into new materials and objects. |
| 3. | According to the 2014 World Health Organisation【世界衛組織】 report, _______________ air pollution【空氣污染】 in 2012 caused the deaths of around 7 million people worldwide【全球】 |
| 4. | An _______________ air pollutant【空氣污染物】 is a material in the air that can have adverse effects【不利影響】 on humans and the ecosystem【生態系統】. |
| 5. | The _______________ greenhouse effect【溫室效應】 is the process【過程】 by which radiation【輻射】 from a planet’s atmosphere【大氣層】 warms the planet’s surface【表面】 to a temperature above what it would be without its atmosphere. |