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प्रश्न
The disposal of urban waste has become a serious concern for the local authorities. Analyze the statement with suitable examples.
उत्तर
The problem of overcrowded, congested and insufficient infrastructure of urban areas results in accumulation of huge urban waste. There are two sources of urban waste. Household or domestic sources and industrial or commercial sources. The mismanagement of urban waste disposal is a serious problem in big cities.
Tons of waste come out daily in metropolitan cities and are burnt. The smoke released from the waste pollutes the air. Lack of sewers or other means to dispose of human excretes safely and the inadequacy of garbage collection sources adds to water pollution.
The concentration of industrial units in and around urban centres gives rise to a series of environmental problems.
Dumping of industrial waste into rivers is the major cause of water pollution. The solid waste generation continues to increase in both absolute and per capita in cities.
This improper disposal of solid waste attracts rodents and flies which spread diseases. The thermal plants release a lot of smoke and ash in the air. For example, a plant producing 500mw electricity releases 2000 tons of ash which is difficult to manage.
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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 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 is the difference between pollution and pollutants?
Describe the major source of air pollution.
What are the effects of air pollution on human health?
What is the unit for measuring noise pollution?
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?
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 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.
Oxidation of sulphur dioxide into sulphur trioxide in the absence of a catalyst is a slow process but this oxidation occurs easily in the atmosphere. Explain how does this happen. Give chemical reactions for the conversion of SO2 into SO3.
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 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.
Which of the following is not a cause of air pollution?
Explain the causes and consequences of air pollution.
Explain the causes and consequences of water pollution.
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 ______.
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.
Which one of the following is NOT a significant factor in creating noise pollution?
