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The function of the paranasal sinuses is to lighten the head and give resonance to the voice. ...

Liaaaa

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The function of the paranasal sinuses is to lighten the head and give resonance to the voice. ...

The function of the paranasal sinuses is to lighten the head and give resonance to the voice.

Indicate whether the statement is true or false

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Liaaaa Author

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You make an excellent tutor!

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Thanks for your help!!

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