Multiple Choice Questions on Consider the following statements 1 Black carbon is formed by the complete combustion of fossil fuel........... for UPSC Civil Services Examination (General Studies) Preparation

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Multiple Choice Questions

Consider the following statements 1 Black carbon is formed by the complete combustion of fossil fuel...........

Environment and Ecology Air Pollution
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    Consider the following statements:

    1.Black carbon is formed by the complete combustion of fossil fuels.

    2.Black carbon is a long-lived climate pollutant.

    3.Brown carbon is a light-absorbing organic carbon.

    Which of the statements given above is/are correct?

    1 and 2 only

    Incorrect Answer

    1 and 3 only

    Incorrect Answer

    3 only

    Correct Answer

    None of the above

    Incorrect Answer
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    Explanation:

    option c 

    • Black carbon, commonly known as soot, is a component of fine particulate air pollution (PM 2.5).
    • It is formed by the incomplete combustion of wood and fossil fuels. 
    • Black carbon lasts only days to weeks in the atmosphere but has significant direct and indirect impacts on the climate, snow and ice, agriculture, and human health.
    • Brown carbon (BrC) is a part of organic carbon (OC) with strongly wavelength-dependent light absorption properties.

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