SSC Ecology And Environment Sample Paper NCERT Sample Paper-6

  • question_answer
    Which of the following cause lung disease?

    A)  Cotton mills                 

    B)  Nuclear reactors

    C)  Petroleum refineries       

    D)  Thermal power plants

    Correct Answer: A

    Solution :

    [a] The cotton dust which is less than 2 mm in size, is \[176\,\,mg/100\,\,{{m}^{3}}\] in fine mills and concentration is above \[150\,\,mg/100\,\,{{m}^{3}}\] produces pneumoconiosis or lung fibrosis called byssinosis.

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