Chapter 21 Vocab

An online crossword puzzle with 20 words. Play it free at AgileCrosswords.com.

Clues

Groups of citzens, communities, state legislatures, and the fed. gov. working together.
Waterless toliet systems
Uses market forces to reduce water pollution
Temperate coastal waters
used for disposal of domestic sewage and wastewater
fuel oil or gasoline.
Oil as it comes out of the ground.
Secondary sewage treatment is a ______ process
Low oxygen levels containing oxygen-consuming fish and bottom-dwelling organisms
Marine life recover within 3 years after exposure to this.
Slimy mixture of toxic chemicals and metals.
National drinking water standards
kills disease-carrying bacteria and some viruses
Method for accomplishing disenfection
Networks of sewer pipes carry water to ______
Large vessel that contaminated water passes through
Removes water coloration
36% of sludge
Primary sewage treatment is a ______ process.
Releases waterborne and airborne toxins