Solution:Vowels are characterized by clear bonds of energy known as formants, which are crucial in distinguishing between different vowel sounds. The configuration of the vocal tract during vowel production-such as tongue height, tongue advancement, and lip rounding-creates distinct patterns of formants visible on a spectrogram. Additionally, the relationship between vowel height and the first formant (F,) is inversely proportional: high vowels generally exhibit lower F, values compared to low vowels, which have higher F, values. This spectrographic differentiation is essential for phonetic analysis and the study of speech sounds.