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Question
State the cause of accelerated eutrophication
Solution
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.
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With the help of a flow-chart exhibit the events of eutrophication.
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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.
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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 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;
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 |
