Question

How are vowels produced in terms of air passage?

• A. With complete closure
• B. With friction
• C. With an open approximation
• D. With nasal airflow

Answer 1

Answer:

C. With an open approximation

Vowels are produced without any obstruction in the air passage. The air flows freely through the mouth, and this is termed "open approximation"—no complete or partial constriction is involved​.

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