UPSC Ecology And Environment Environmental Issue And Environmental Pollution Question Bank Environmental Issues

  • question_answer
    Carcinogens arc dangerous because they affect

    A)  oxygen-carrying red blood cells.

    B)  the ability of the lining of the lungs to absorb oxygen.

    C)  DNA molecules inside cells.

    D)  the ability to absorb nutrients in the wall of the intestines.

    Correct Answer: C


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