What are physical and chemical characteristics of a eutrophic lake?

 Physical - color of water of O - almost transparent - E- slightly colored due to high concentration of Plankton. 
Light penetration in O- substantial - in E - quite lesser than that of O. 
Electric conductivity - less in O - higher in E. 
Chemical. 
DO2 in O lesser than that of E. 
Alkalinity in O lesser than E during daytime,O less acidic then E during night time. 
Hardness in E more than O. 
Equilibrium CO2 always used up in E, but not in O.

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