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प्रश्न
Explain the causes and consequences of air pollution.
State any two consequences of air pollution.
उत्तर
Combustion of fossil fuels, mining and industries are the main sources of air pollution. These processes release oxides of sulphur and nitrogen, hydrocarbons, carbon dioxide, carbon monoxide, lead and asbestos.
Causes and consequences of air pollution are follows:
- Air pollution causes various diseases related to respiratory, nervous and circulatory systems.
- Smoky fog over cities called as urban smog is caused by atmospheric pollution. It proves very harmful to human health.
- Air pollution can also cause acid rains.
- Ozone depletion is brought on by an excess of carbon dioxide and chlorofluorocarbons in the atmosphere.
- Numerous skin issues, including acne and eye irritation, are also caused by it.
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संबंधित प्रश्न
Match the List I with List II and select the correct answer using the code given below the lists.
| List I | List II | ||
| A | Stone leprosy | 1 | CO |
| B | Biological magnification | 2 | Green house gases |
| C | Global warming | 3 | Acid rain |
| D | Combination with haemoglobin | 4 | DDT |
Which one of the following diseases is caused by water pollution?
Which one of the following is the cause of acid rain?
What is the difference between pollution and pollutants?
What are the effects of air pollution on human health?
What is the unit for measuring noise pollution?
Which one of the following rivers is highly polluted?
Which of the following problems is caused by air pollution?
In which town, do vehicles emit the most carbon monoxide?
Which of the following are the most polluted rivers of India?
Biochemical Oxygen Demand, (BOD) is a measure of organic material present in water. BOD value less than 5 ppm indicates a water sample to be ______.
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because ______.
Which of the following conditions shows the polluted environment.
(i) pH of rain water is 5.6.
(ii) amount of carbondioxide in the atmosphere is 0.03%.
(iii) biochemical oxygen demand 10 ppm.
(iv) eutrophication.
The consequences of global warming may be:
(i) increase in average temperature of the earth.
(ii) melting of Himalayan Glaciers.
(iii) increased biochemical oxygen demand.
(iv) eutrophication.
What are biodegradable and non-biodegradable pollutants?
What are the sources of dissolved oxygen in water?
What is the importance of measuring BOD of a water body?
Why does water covered with excessive algal growth become polluted?
A factory was started near a village. Suddenly villagers started feeling the presence of irritating vapours in the village and cases of headache, chest pain, cough, dryness of throat and breathing problems increased. Villagers blamed the emissions from the chimney of the factory for such problems. Explain what could have happened. Give chemical reactions for the support of your explanation.
Match the activity given in Column I with the type of pollution created by it given in Column II.
| Column I (Activity) | Column II (Effect) | ||
| (i) | Releasing gases to the atmosphere after burning waste material containing sulphur. |
(a) | Water pollution |
| (ii) | Using carbamates as pesticides | (b) | Photochemical smog, damage to plant life, corrosion to building material, induce breathing problems, water pollution |
| (iii) | Using synthetic detergents for washing clothes |
(c) | Damaging ozone laye |
| (iv) | Releasing gases produced by automobiles and factories in the atmosphere. |
(d) | May cause nerve diseases in human. |
| (v) | Using chlorofluorocarbon compounds for cleaning computer parts |
(e) | Classical smog, acid rain, water pollution, induce breathing problems, damage to buildings, corrosion of metals. |
How can you apply green chemistry for the following:
To reduce use of synthetic detergents.
A farmer was using pesticides on his farm. He used the produce of his farm as food for rearing fishes. He was told that fishes were not fit for human consumption because large amount of pesticides had accumulated in the tissues of fishes. Explain how did this happen?
Which of these activities are the most significant contributor to water pollution?
Which of the following is the largest contributor to water pollution in India?
Explain the causes and consequences of water pollution.
Which in wrong with respect to our responsibility as a human being to protect our environment?
How has noise pollution become a serious problem in recent years in India? Explain.
