7.
What percent of urban sewage in the developing world is discharged into rivers, lakes, and coastal waterways without any treatment?
33%
55%
90%
Find out more about
water & sanitation
.
Exploring Countries & Regions
|
Tackling the Issues
|
Through the Eyes of ...
|
Learning Materials for Your Classroom
Link to Schools Around the World
|
Getting Down to Data
|
Researching with World Bank Tools
The Inside Story
|
Do You Know...?
|
Be a Reporter!
|
Tapping into External Resources
For Schools Home
|
Search
|
Glossary
|
Feedback
