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प्रश्न
Write critical notes Groundwater depletion and ways for its replenishment
उत्तर
Ground water depletion and ways for its replenishment: - The level of ground water has decreased in the recent years. The source of water supply is rapidly diminishing each year because of an increase in the population and water pollution. To meet the demand of water, water is withdrawn from water bodies such as ponds, rivers etc. As a result, the source of ground water is depleting. This is because the amount of groundwater being drawn for human use is more than the amount replaced by rainfall. Lack of vegetation cover also results in very small amounts of water seeping through the ground. An increase in water pollution is another factor that has reduced the availability of ground water.
Measures for replenishing ground water:-
(i) Preventing over-exploitation of ground water
(ii) Optimizing water use and reducing water demand
(iii) Rain water harvesting
(iv) Preventing deforestation and plantation of more trees
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संबंधित प्रश्न
Name the two different categories of microbes naturally occurring in sewage water.
Explain how does the algal bloom eventually choke the water body in an industrial area?
List the events that reduce the Biochemical Oxygen Demand (BOD) of a primary effluent during sewage treatment.
Write critical notes Biological magnification
Explain the role of microbes in cleaning sewage water into usable water.
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.
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.
Biomagnification is caused mainly by ______.
The expanded form of DDT is ______.
The green scum seen in the fresh water bodies is ______.
The loudness of a sound that a person can withstand without discomfort is about ______.
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 are:
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 |
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 |
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 |
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 |