How are vowels categorized based on the vertical position of the tongue during articulation?
Explanation
Vowels are classified according to various features. When considering the height of the tongue, vowels are divided into high vowels, where the tongue is raised close to the roof of the mouth, and low vowels, where the tongue is positioned lower. Other classifications include lip rounding (rounded vs. unrounded), tongue placement front to back (front vs. back vowels), and muscular tension (tense vs. lax vowels).