Answer:
5 vowels.
Explanation:
Vowels are speech sounds, and are represented by the letters a , e , i , o , u and sometimes y. All other letters are Consonants.
The vowels will be bolded in Hippopotamus:
Hippopotamus.
In this case, we can see 5 vowels in the word (i , o , o , a , u) respectively.
Learn more about vowels and consonants, here:
https://brainly.com/question/3264958
