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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
Define environmental chemistry.
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 |
What is non-degradable pollutants?
Which one of the following river is highly polluted?
Which one of the following diseases is caused by water pollution?
Which one of the following is the cause of acid rain?
What are the effects of air pollution on human health?
Which is the natural source of air pollution?
What is the source of pollution along the banks of Ganga?
Which one of the following rivers is highly polluted?
Which of the following problems is caused by air pollution?
River Ganga flows through which of the following states?
Which of the following naturàl activities is responsible for air pollution?
How is the use of plastic bags harmful for environmental degradation? Evaluate it by citing suitable reasons.
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 ______.
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.
Dissolved oxygen in water is very important for aquatic life. What processes are responsible for the reduction of dissolved oxygen in water?
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.
Which of the following is a natural source of air pollution?
Which of these sources are responsible for water pollution?
- Households
- Industries
- Farms and fields
- Tourism
Match the following and choose the correct answer.
| List I (Pollution) |
List II (Effects) |
| 1. Water Pollution | A. Smog |
| 2. Air Pollution | B. Alkalinity |
| 3. Land Pollution | C. Diarrhoea |
Which of the following is/are the causes of pollution in Yamuna?
- Industrial pollution from Kanpur.
- Domestic waste from Delhi.
- Extraction of water by Haryana and Uttar Pradesh for irrigation.
Hepatitis A is transmitted due to
Sulphur dioxide is one of the components of polluted air, SO2 is also a major contributor to acid rain. The correct and complete reaction to represent acid rain caused by SO2 is ______.
How has noise pollution become a serious problem in recent years in India? Explain.
