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Environmental Issues Test - 16

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Environmental Issues Test - 16
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Weekly Quiz Competition
  • Question 1
    1 / -0

    The noise level that can cause permanent impairment of hearing ability of human beings :


    Solution

    Noise pollution is a kind of air pollution that may cause permanent impairmentof hearing ability of human beings.

    After 150 dB (firecracker) sounds can be felt in the form of shock waves. The pressure difference they cause in the medium can actually be felt by your body. 150 decibels is usually considered enough to burst your eardrums,

  • Question 2
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    Which of these pollutants are responsible for photochemical smog formed in congested metropolitan cities?
  • Question 3
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    A method to eradicate pests using the pest's natural predators or parasites, which is environmental friendly is termed as 
  • Question 4
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    The recent reports of acid rain in big industrial cities are due to the effect of atmospheric pollution by
  • Question 5
    1 / -0
    What does high intake of fluoride mainly affect?
  • Question 6
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    A sure indicator of air pollution is

    Solution

    Bioindicators are living organisms that respond in an especially clear way to a change in the environment.


    The lichens are useful bioindicators for air pollution, espeially sulfur dioxide pollution, since they derive their water and essential nutrients mainly from the atmosphere rather than from the soil. 

    The polluted air have very less or no lichens.

  • Question 7
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    Biological oxygen demand (BOD) is the amount of oxygen consumed by microbes to decompose organic matter. It is least in 
  • Question 8
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    Air pollution is:

    i. 5th leading cause of deaths in Indian sub-continent.

    ii. ranked among top 10 killers in the world.

    iii. 7th most dangerous killer in south Asia.

    Solution

    Air pollution causes a number of respiratory disease including lung cancer. It is the 5th leading causes of deaths in Indian sub-constinent and 7th most dangerous killer in south Asia.

  • Question 9
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    Which of the following are the immediate concerns regarding carbon cycle?

    a. Output rate of carbon locked in deposits of coal, petroleum and natural gas
    b. Green house effect caused by CO2
    c. Increase in CO2 on Earth's atmosphere by 12 to 14%
    d. Increase in CO2 decreasing primary productivity
    e. Increase in photorespiration
  • Question 10
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    Which of the following is the correct match of environment-related disorder and its cause?
  • Question 11
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    Mile Island and Chernobyl disasters are environmental disasters associated with the accidental leakage of radioactive waste. In India, Bhopal gas tragedy, an environmental disaster, is associated with the leakage of
  • Question 12
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    Which of the following gets reduced as a result of 'eutrophication'?
  • Question 13
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    Which of the following organisms are the indicators of sulphur dioxide pollution?
  • Question 14
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    Chlorofluorocarbons (CFCs) which are used in refrigerators, air conditioners and aerosol sprays are responsible for 
  • Question 15
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    normal adults, the enzyme which catalyses conversion of MHb into Hb is :

    Solution

    Methemoglobin cannot bind oxygen, unlike oxyhemoglobin. It is bluish chocolate-brown in color.

    In human blood a trace amount of methemoglobin is normally produced spontaneously, but when present in excess the blood becomes abnormally dark bluish brown 

    The NADH-dependent enzyme methemoglobin reductase (MHbreductase enzyme) is responsible for converting methemoglobin back to hemoglobin. . MHb is inactive forms that is converted into Hb that carries oxygen in blood.

  • Question 16
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    Formation of non-functional methaemoglobin causes blue-baby syndrome. This occurs due to
  • Question 17
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    Which of the following chemicals was responsible for 'itai itai' disease in Japan?
  • Question 18
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    Due to greenhouse effect, the average temperature of Earth's atmosphere is gradually increasing. This is called global warming. Which of the following are not greenhouse gases?
  • Question 19
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    Directions: In the following question, two statements are given, namely Assertion (A) and Reason (R). Read both these statements and choose the correct option regarding them.

    Assertion (A):     Nitrogen fixation is achieved industrially by the Haber Bosch process in which H2 and N2 are mixed together at high temperature and pressure in the presence of a catalyst to form NH3.
    Reason (R): Fertilisers like ammonium nitrites are prepared by this process.
  • Question 20
    1 / -0

    Term acid rain was coined for the first time by

    Solution

    Robert August Smith was a Scottish chemist, who investigated numerous environmental issues. He is known for his research on air pollution in 1852, in the course of which he discovered what came to be known as acid rain. He is sometimes referred to as the 'Father of Acid Rain'.

    Acid rain occurs due to presence of Sulphur dioxide and nitrogen oxide in atmosphere.

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