1. Why "modern living" is here described as a "threat"? 
　　　 A) Because modern life is harmful to younger generation.
　　　 B) Because the waste products of modern life ruin the environment.
　　　 C) Because natural life has become a thing of the past.
　　　 D) Because people in cities are not caring for each other.

　　2. Why have people become very conscious of the threat to our natural environment? 
　　　 A) Because they are afraid of the modern life
　　　 B) Because modern life will pollute our town centers.
　　　 C) Because people care more about the quality of life.
　　　 D) Because people are threatened by the modern life.

　　3. One of the actions against pollution is _____. 
　　　 A) to get rid of modern life
　　　 B) to restore agricultural land
　　　 C) to ban motor traffic in town centers
　　　 D) to clean rivers, lakes and coastal waters