why do we yawn when we are tired
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we yawn when our brain is tired and when it is not getting propper supply of oxygen
Saksham1199:
brainiest please
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we yawn when we are tired because the oxygen inside our body is over and to get more oxygen we yawn
hope this will help you and plz mark it as brainliest if it is helpful to u
hope this will help you and plz mark it as brainliest if it is helpful to u
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