A. out of B. rural C. to protectA. working 1 their urban forestB. Trees take pollution 2 the airC. But you are not in 3 area You are standing in a beautiful forest in Japan. The air is clean and smells like plants and flowers. There are 175 different kinds of trees, and 60 kinds of birds live here. 4 You are downtown in the city of Nara, Japan, in Kasugayama Forest, the oldest urban forest in the world. Cities around the world are 5 Some urban forests are parks, and some are just streets with a lot of trees. But all urban forests have many good effects on the environment. 6 They also stop the noise from heavy traffic.