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प्रश्न
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.
As a student of biology, do you agree with their delight? Give reasons in support of your answer.
उत्तर
What the villagers saw and are delighted about is algal bloom over a stationary water body. This algal bloom will cut off the supply of light and oxygen to the submerged flora and fauna of the water body. It will outcompete the water bodies flora and fauna for nutrients and will rapidly grow and deplete other organisms in the given water body ecosystem of necessary nutrients. This will quickly lead to the death, decay, and destruction of the already existing water body ecosystem.
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 reduce the Biochemical Oxygen Demand (BOD) of a primary effluent during sewage treatment.
Write critical notes on Eutrophication
Explain the role of microbes in cleaning sewage water into usable water.
Biomagnification is caused mainly by ______.
The loudness of a sound that a person can withstand without discomfort is about ______.
Which of the following water samples in the table given below, will have a higher concentration of organic matter?
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 |
The correct matches is;