Lake of the Woods is a lake occupying parts of the Canadian provinces of Ontario and Manitoba and the state of Minnesota. Minnesota’s portion of the Lake of the Woods does not meet water quality standards because of excessive total phosphorus and Chlorophyll-a concentrations as well as a violation of the Secchi disk. Which one of those factors is most CLOSELY related to algal blooms? "D"

don't know how to put a answer up but if you have this question its "D" and this site really helped me this year