With reference to a fresh water lake, consider the following characteristics:1. Richness in nutrients2. Rapid turnover of phytoplankton3. Depletion of dissolved oxygenWhich of the above is/are observed in a lake after its eutrophication?

With reference to a fresh water lake, consider the following character

1.	With reference to a fresh water lake, consider the following characteristics:1. Richness in nutrients2. Rapid turnover of phytoplankton3. Depletion of dissolved oxygenWhich of the above is/are observed in a lake after its eutrophication?
A.	only
B.	and 2 only
C.	only
D.	, 2 and 3
Answer» D. , 2 and 3