Q. With reference to Eutrophication, Which of the following is/are true?
1. It is phenomenon of nutrient enrichment of a water body
2. It depletes the water of dissolved oxygen (DO).
3. Human activities are mainly responsible for the eutrophication
Select the correct answer from the following codes
A. Only 1
B. Only 1 and 2
C. Only 2 and 3
D. 1,2 and 3
Answer: 1,2 and 3
