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प्रश्न
Describe the major source of air pollution.
उत्तर
Combustion of coal, petrol, and diesel, industrial processes, solid waste disposal, sewage disposal, etc. are the major sources of air pollution because they add oxides of sulfur, oxides of nitrogen, carbon monoxide, hydrocarbons, ammonia, lead aldehydes, asbestos, and helium in the atmosphere.
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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 |
What is degradable pollutants?
Which one of the following diseases is caused by water pollution?
What is the difference between pollution and pollutants?
Describe the nature of water pollution in India.
Which is the natural source of air pollution?
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 are the most polluted rivers of India?
Which of the following is not the source of noise pollution?
The disposal of urban waste has become a serious concern for the local authorities. Analyze the statement with suitable examples.
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.
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?
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 activities are the most significant contributor to water pollution?
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 the largest contributor to water pollution in India?
Which of the following is not a cause of air pollution?
Hepatitis A is transmitted due to
Explain the causes and consequences of air pollution.
Read the given source and answer the questions that follow:
|
The main sources of noise pollution are various factories, mechanized construction and demolition Works, automobiles and aircraft, etc. There may be added periodical but polluting noise from sirens, loudspeakers used in various festivals, programmes associated with community activities. The level of steady noise is measured by sound level expressed in terms of decibels (dB). Of all these sources, the biggest nuisance is the noise produced by traffic, because its intensity and nature depend upon factors, such as the type of aircraft, vehicle, train and the condition of road, as well as, that of vehicle (in case of automobiles). In sea traffic, the noise pollution is confined to the harbour due to loading and unloading activities being carried. Industries cause noise pollution but with varying intensity depending upon the type of industry. Noise pollution is location specific and its intensity declines with increase in distance from the source' of pollution, i.e. industrial areas, arteries of transportation, airport, etc. Noise Pollution is hazardous in many metropolitan and big cities in India. |
- Explain the meaning of noise pollution.
- Why is noise pollution hazardous in metropolitan cities in India?
- "Noise pollution is location specific." Explain with argument.
