Multiple Choice Questions on Consider the following statements with reference to the bio toilets used by the Indian railways 1 It........... for General Studies ( Level -2 ) Preparation

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Multiple Choice Questions

Consider the following statements with reference to the bio toilets used by the Indian railways 1 It...........

General Studies ( Prelim) General Science
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    Consider the following statements with reference to the bio-toilets used by the Indian railways:

    1.It is based on the bio-digester concept of Defence Research and Development Organization.

    2.It uses a colony of anaerobic bacteria to decompose the human waste.

    3.DRDO has brought the psychrophilic bacteria from Antartica to use it in the bio-toilet.

    4.Carbon Dioxide (CO2) and water vapour (H2O) are the only end products in this decomposition which are released into the atmosphere.

    How many of the statements given above is/are correct?

    Only One

    Incorrect Answer

    Only Two

    Incorrect Answer

    Only Three

    Correct Answer

    All Four

    Incorrect Answer
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    Explanation:

    Correct: The bio-toilets are indeed based on the bio-digester concept developed by the Defence Research and Development Organization (DRDO).

    Correct: These bio-toilets use a colony of anaerobic bacteria for decomposing human waste.

    Correct: The psychrophilic bacteria used in these bio-toilets are  specifically brought from Antarctica. 

    Incorrect: The end products of the decomposition process in these bio-toilets are not just Carbon Dioxide (CO2) and water vapor (H2O). They also include methane and other gases in small quantities, along with non-toxic effluent water.

    Therefore, statements 1 ,2 and 3 are correct.

     

    By: Kamal Kashyap
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