Water Pollution (Part 2)

2. These areas bear the brunt of our enormous inputs of pollutants and wastes into our oceans
3. Low oxygen levels
8. A simple way to purify drinking water is exposing a clear plastic bottle filled with contaminated water to intense _______
10. The EPA estimates that each year 7.1 million people get sick from ________ in US waters contaminated by sewage overflow and storm-water runoff
13. The key to protecting oceans is to reduce the flow of this from the land, streams emptying into the ocean, and the air
15. 85% of sewage from large cities along this sea is discharged untreated
17. A slimy mixture of bacteria-laden solids and often toxic chemicals and metals when sewer systems mix industrial and household wastes
18. The EPA classified _______ of five estuaries as threatened or impaired
19. New York City's drinking water is known for this
20. The best way to reduce oil pollution is to use oil tankers with double ______

1. Experts say the United States has some of the world's _______ drinking water
4. This can dilute, disperse, and degrade large amounts of raw sewage and other degradable pollutants
5. Officials in Peru decided to stop chlorinating the country's drinking water because of concerns over the increased risk of _______ from organic compounds chlorination can form
6. Only 1% of the waste entering this bay is flushed into the Atlantic Ocean
7. The world's third largest oxygen-depleted zone is found in a narrow stretch here
9. "It is a hard truth to swallow, but nature does not care if we live or die"
11. Environmental scientist who calls for redesigning the sewage treatment system
12. Volatile organic ______ in oil immediately kill a number of aquatic organisms
14. One-fourth of bottled water is ordinary _______ water
16. Storing drinking water here improves clarity and taste by increasing dissolved oxygen content and allowing suspended matter to settle
20. Harmful algal blooms