Clean Air


 
 
Concept Explanation
 

Clean Air

Clean air: Clean air is a basic requirement for good health. Breathing polluted air causes respiratory diseases such as asthma and bronchitis. Although it is the government’s job to ensure that industries do not pollute the air, we can also take certain steps to ensure that the air we breathe is clean and fresh. Our homes should be well ventilated.

Causes of air pollution: 

  • Automobiles: The gases emitted from  the vehicle such as jeep, trucks, cars etc. pollute the envirionment. These are the major sources of greenhouse gases and also result in diseases among individuals.
  • Agricultural Activities: Ammonia is one of the most hazardous gases emitted during agricultural activities. The insecticides, pesticides and fertilizers emit harmful chemicals in the atmosphere and contaminate it. 
  • Factories and Industries:  Factories and industries are the main source of carbon monoxide, organic compounds, hydrocarbons and chemicals. These are released into the air, degrading its quality. 
  • Mining Activities:  In the mining process, the minerals below the earth are extracted using large pieces of equipment. The dust and chemicals released during the process not only pollute the air, but also deteriorate the health of the workers and people living in the nearby areas. 
  • Domestic Sources: The household cleaning products and paints contain toxic chemicals that are released in the air. The smell from the newly painted walls is the smell of the chemicals present in the paints. It not only pollutes the air but also affects breathing.
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following are correct :

    (a) The dust and chemicals released during the process of mining not pollute the air.

    (b) The smell from the newly painted walls is the smell of the chemicals present in the paints pollute air.

    Right Option : B
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    Explanation
    Question : 2

    Which of the following are correct :

    (a) The gases emitted from  the vehicle such as jeep, trucks, cars etc. pollute the environment.

    (b) Ammonia is one of the most hazardous gases emitted during agricultural activities.

    (c) Ammonia is one of the most beneficial gases emitted during agricultural activities.

    Right Option : B
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    Explanation
    Question : 3

    Breathing polluted air causes diseases of the __________________.

    Right Option : C
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    Explanation
     
     
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