Is Switzerland a clean country?

Related questions

1. Is Switzerland and Swiss the same?
2. How many nationalities live in Switzerland?
3. Can I live in Switzerland speaking English?
4. Can a foreigner buy a house in Switzerland?
5. Is William Tell a true story?
6. Can you just move to Switzerland?
7. Why is Switzerland so clean?
8. How can I become a citizen of Switzerland?
9. Do you have to be rich to live in Switzerland?
10. Is it safe to live in Switzerland?

Tags

1. #country
2. #including
3. #switzerland
4. #clean
5. #developed
6. #interlaken
7. #basel
8. #lucerne
9. #europe
10. #records
11. #environmental
12. #world
13. #cleanest
14. #could
15. #cities
16. #visited
17. #among
18. #rivers
19. #directly
20. #water
21. #nations
22. #drink