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प्रश्न
What is Biochemical Oxygen Demand significance in an aquatic ecosystem?
उत्तर
Significance in an Aquatic Ecosystem :
BOD ∝ input of organic wastes
If BOD is increased dissolved oxygen is decreased in water. The higher amount of organic waste increases the rate of decomposition in water. O2 is rapidly consumed by microbes, thereby causing the drop in dissolved oxygen content in water
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संबंधित प्रश्न
How does algal bloom destroy the quality of a fresh water body? Explain.
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(i) Name the organisms depicting the patterns A and B.
(ii) State the reason for the growth pattern seen in A.
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Answer the following question:
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As a student of biology, do you agree with their delight? Give reasons in support of your answer.
The green scum seen in the fresh water bodies is ______.
Which one of the following diseases is not caused due to contamination of water?
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 The correct matches is | 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:
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;
