bibliography

This is were we got all are info

 

 

http://www.csd49.org/cms/classpages/sci_links.html#water_links

http://www.h2ou.com/h2wtrqual.htm#Oxygen

http://www.ncsu.edu/sciencejunction/depot/experiments/water/lessons/do/

ttp://waterontheweb.org/under/waterquality/oxygen.html

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Ppm.html

http://ga.water.usgs.gov/edu/phdiagram.html

http://www.h2ou.com/h2wtrqual.htm#pH

http://www.freedrinkingwater.com/water-education/quality-water-ph.htm