JEE Main2015ChemistryEnvironmental ChemistryActual
Addition of phosphate fertilizers to water bodies causes:
Options
- ADeposition of calcium phosphate
- BEnhanced growth of algae
- CIncrease in fish population
- DIncrease in amount of dissolved oxygen in water
Correct answer
B. Enhanced growth of algae
Step-by-step solution
Addition of phosphate fertilizers or other fertilizers to water bodies causes enrichment in nutrients, this phenomenon is called Eutrophication. Increase in nutrients enhanced growth of algae (vegetation) which cause consume of dissolved oxygen. Hence decrease in quantity of dissolved oxygen, effects the life of aqua-animals or other vegetation. So Eutrophication is a types of water pollution.