Discuss the changes in the voices of boys and girls during adolescence.
During adolescence, the larynx gets bigger and the vocal cords are lengthened and thickened. This makes the voice deeper in boys. The increased larynx occurs as a protruding part in some boys and is known as Adam's apple. Sometimes, the muscles of the growing larynx go out of control and the voice grows hoarse; however, it becomes normal after some time. In girls, the larynx grows bigger as well, but the growth is not as much as in boys. Generally, girls have a high-pitched voice because of this change.
Living Science (2020, 2021)