Water Pollution I Brought to you by the Cogix Crossword Wizard

To view this puzzle, you need a Java-enabled browser and to be onnected to the Internet to receive the Crossword.class Java applet code.

ACROSS DOWN
1 Widespread and vague cause of pollution 2 A common measure for organic waste is the biochemical ______ demand
5 A factory, an oil rig, an overturned chemical tanker 3 Sand and silt that do not dissolve but instead damage riverbed life while moving
6 A prime source of human pathogens in water 4 A form of pollution stemming from soil erosion upstream
11 Concentration of toxins as they move up the food chain 5 Photosynthetic aquatic microbes
13 Calcium chloride and cadmium are _________ chemicals 7 Overenrichment of waters causing excessive growth of certain species
8 Murky, dirty (water)
9 Frequently innocent by-products and mostly unintentional
10 Disease-causing lifeforms, in a nutshell
12 Petroleum and polychlorinated biphenyls are _______ chemicals


Reference

Nebel, Bernard J. and Wright, Richard T. Environmental Science: The Way The World Works. 7th ed. 2000: Prentice Hall, New Jersey.

Back to the Crossword Index


Let me know what you think. Otherwise, I might keep making these horrible puzzles.