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?
A)
total phosphorus
B)
Chlorophyll-a concentrations
violation of the Secchi disk
D)
both phosphorous and chlorophyll-a concentrations