Civil Services UPPSC RO ARO 2024-25 Mock Tests Series General Knowledge Ecology and Environment Environment Problems
Which of the following substances contribute to Eutrophication?
1. Nitrogen
2. Phosphorus
3. Chlorofluorocarbons
Select the correct answer using the code given below.
1
1 and 2 only
2
2 and 3 only
3
1, 2 and 3
4
1 and 3 only