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SAVE THE FISHIES!


lil' fishies..lil' fishies..lil' fishies..lil' fishies..


Tuesday, August 11, 2009
SAVE THE FISHIES! Water Pollution Survey


There is a website that conduct a water pollution survey last time. I think we can learn something from them on how to caculate the results and the way they had done their survey.

http://www.epa.gov/nps/toolbox/surveys/leagueofwomenvoters.pdf

shenli
O(∩_∩)O~




Finished @ 6:46 AM