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Why we yawn when we are …

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Why we yawn when we are sleepy ?

    • Posted by Pooja Lambat 7 years, 8 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Keerthana C 7 years, 8 months ago

    It shows that we are tired

    0Thank You

    Raushan Kumar 7 years, 8 months ago

    It shows that we want to sleep

    1Thank You

    Akanksha Agari 7 years, 8 months ago

    It indicates us that our body requires rest.

    3Thank You

    ANSWER
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