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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
Why is Eichhornia crassipes nicknamed as “Terror of Bengal”?
Explain how does the algal bloom eventually choke the water body in an industrial area?
"Determination of Biological Oxygen Demand (BOD) can help in suggesting the quality of a water body." Explain.
Answer the following question:
While on a visit to a pond in the city-neighborhood, the visitors were delighted to find a large expanse of water covered with colorful algal mass.
Explain the cause of such algal growth.
The green scum seen in the fresh water bodies is ______.
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 |
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 |
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 |
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 |
The correct matches is;
