NEET2016BotanyEnvironmental IssuesActual
A lake which is rich in organic waste may result in
Options
- AIncreased population of aquatic organisms due to minerals
- BDrying of the lake due to algal bloom
- CIncreased population of fish due to lots of nutrients
- DMortality of fish due to lack of oxygen
Correct answer
D. Mortality of fish due to lack of oxygen
Step-by-step solution
Micro-organisms involved in biodegradation of organic matter consume lot of oxygen, oxygen as a result there is a sharp decline in dissolved oxygen in water that causes mortality of fish and other aquatic creatures.