Science, asked by InaayaImam, 8 months ago

Please answer these 2 questions ​

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Answered by vineetaagarwal271801
1

Explanation:

ANSWER 9 - When we feel drowsy or sleepy we start yawning because yawning makes our mouth open wider and wider mouth will take more oxygen in the body . That is why we take yawning when we feel drowsy or sleepy

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