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प्रश्न
State the cause of accelerated eutrophication
उत्तर
Accelerated eutrophication:
- It is the ageing of a water body due to nutrient enrichment of its water. It can be natural or artificial. Eutrophication takes thousands of years, but due to human activities the process has been accelerated. So, it is called accelerated eutrophication.
Causes of accelerated eutrophication:
- Release of nutrient-rich sewage and industrial effluents lead to the introduction of nutrients such as nitrogen and phosphorus.
- Sewage and industrial effluents also lead to increase in temperature and BOD of the water body, causing increased biological activity, thereby leading to algal blooms.
संबंधित प्रश्न
How does algal bloom destroy the quality of a fresh water body? Explain.
Why is Eichhornia crassipes nicknamed as “Terror of Bengal”?
List the events that lead to biogas production from waste water whose BOD has been reduced significantly.
Write critical notes Biological magnification
What is Biochemical Oxygen Demand significance in an aquatic ecosystem?
The expanded form of DDT is ______.
The loudness of a sound that a person can withstand without discomfort is about ______.
Which one of the following diseases is not caused due to contamination of water?
Match the items in column I and column II and choose the correct option:
| Column I | Column II |
| A. UV | i. Biomagnification |
| B. Biodegradable Organic matter | ii. Eutrophication |
| C. DDT | iii. Snow blindness |
| D. Phosphates | iv. BOD |
The correct match is:
Match the following and choose the correct option.
| Column I | Column II | ||
| A. | Environment Protection Act | i. | 1974 |
| B. | Air Prevention & Control of Pollution Act | ii. | 1987 |
| C. | Water Act | iii. | 1986 |
| D. | Amendment of Air Act to include noise as an air pollutant | iv. | 1981 |
