10 negara terbersih di dunia

1. Switzerland

2. Sweden

3. Norway

4. Finland

5. Costa Rica

6. Austria

7. New Zeland

8. Latvia

9. Colombia

10. France

Sumber : http://serba-sepuluh.blogspot.com/2010/01/daftar-10-negara-terbersih-di-dunia.html#ixzz1IDBsU115