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Science Bowl Question

📅 NSB MS 2014🎓 MS🔄 Round 9#️⃣ Question 22🌟 BONUS📝 Multiple Choice

What is the purpose of the Eustachian tube [yoo-STAY-shuhn]?

W) It improves outer ear transmission of sound
X) It improves vibration of the malleus
Y) It assists in decreasing hearing
Z) It clears mucous from the middle ear into the throat
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