Question

why does the sound of a girl differ from that if a boy​

Answer 1

Answer:

The sound of a girl differ from that of a boy because Girls vocal cords are usually shorter and thinner than most boys,which is why their voices sound higher. This difference in pitch is even more noticeable in grown-up men and women.

Answer 2

Answer:

I know the answer but mark me as brilliant first !

Explanation:

The vocal cords' vibration makes sound, just like a strummed guitar does. And like guitar strings, smaller cords create a higher sound. Girls' vocal cords are usually shorter and thinner than most boys', which is why their voices sound higher. This difference in pitch is even more noticeable in grown-up men and women.