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An instrument called a ________ is used to measure the volume of air that moves into and out of the lungs. a. Hydrometer b. Barometer c. Spirometer d. None of the above
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An instrument called a ________ is used to measure the volume of air that moves into and out of the lungs.

a. Hydrometer
b. Barometer
c. Spirometer
d. None of the above

User Sbouaked
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1 Answer

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    An instrument called the spriomete and it is used to measure the volume of air that movea into and out of the lungs. Hope this helped!
User DuncanKinnear
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