JEE Main202127 Jul 2021Morning ShiftChemistryEnvironmental ChemistryActual
Which one of the following statements is NOT correct?
Options
- AEutrophication indicates that water body is polluted
- BThe dissolved oxygen concentration below 6   ppm inhibits fish growth
- CEutrophication leads to increase in the oxygen level in water
- DEutrophication leads to anaerobic conditions
Correct answer
C. Eutrophication leads to increase in the oxygen level in water
Step-by-step solution
Eutrophication leads to decrease in oxygen level of water. Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytoplankton productivity".