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Why do we need oxygen ?

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Why do we need oxygen ?

    • Posted by Aman Yadav 7 years, 8 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Guarav Chutar 7 years, 8 months ago

    To live in the earth and breathe

    0Thank You

    Jagriti Mittal 7 years, 8 months ago

    We need oxygen to breath and by respiration we get lot of energy

    1Thank You

    R S 7 years, 8 months ago

    To breathe

    1Thank You

    ANSWER
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