Question

what determines the difference between the voices of two girls of same age​

Answer 1

Answer:

The pitch determines the difference between the voices of two girls.

It makes one's voice more shriller or more flat....

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Answer 2

$\huge\mathscr\pink{Hey \: Mate}$

✒It is pitch which helps us to determine the voice of girls of same age.

Hope it will help you ❤❤