Which of the following does not occur when the sewage is discharged into water?

Which of the following does not occur when the sewage is discharged into water?

Q. Which of the following does not occur when the sewage is discharged into water?

  1. Increase in O2
  2. Cyanophycean blooms occur
  3. Depletion of O2 layers
  4. Eutrophication

Answer: Increase in O2

water pollution mcqs
Gkseries: Gkseries.com is a premier website to provide complete solution for online preparation of different competitive exams like UPSC, SBI PO, SBI clerical, PCS, IPS, IAS, IBPS PO, IBPS Clerical exam etc. & other graduate and post-graduate exams. Learn more on about us page