Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) People Development & Environment Environmental Issues Pollution
Lower level of Dissolved Oxygen (DO) in water:
A. is bad for human consumption.
B. may have been caused due to presence of oxygen demanding wastes.
C. threatens the fish and aquatic life.
D. cannot be used for irrigation purposes.
E. may cause undesirable taste and odour.
Choose the most appropriate answer from the options given below:
1
A, B and C only
2
A, B and D only
3
B, C and E only
4
C, D and E only