Yes, both because of less fat on the neck and because of hormonal changes. See an interesting explanation on this page.
Yes you can deepen ur voice and it is ok sometimes but sometimes not.
Unless you consider some risky hormone treatments, there is nothing that will deepen your voice. Your voice will naturally deepen as you go through puberty. The deepening is due to the thyroid cartilage and vocal cords growing.
Voice coaches and/or speech therapists can help with this.
The disadvantages of singing is that you can lose your voice and probably hit puberty and deepen your voice.
It can destroy your voice- as in lose it completely. It can also cause a very "scratchy" voice- but deeper- no.
Testosterone is the hormone that causes elongation of the vocal cords and thus a deeper voice.
There is not an exact age for what age boys voices deepen, because we all go through puberty at a different time. Approximately, boys voices deepen around eleven through around fourteen. That still doesn't mean their voice is changed and is not going to still change, because it could still get deeper. Also, a boy's voice can change sooner or even later. I know this because there are a lot of boys in my grade (Sixth grade) I've noticed that their voice deepened.
Yes, during puberty, the voice typically undergoes changes due to the growth of the larynx (voice box). In males, the voice tends to deepen and often becomes lower, while in females, the voice usually remains relatively high or may become slightly deeper. These changes are due to hormonal influences on the vocal cords.
no he is not
usually by the time you hit high school or shortly after or before (give or take a year or two)
Inflammation of the larynx (laryngitis) can sometimes accompany common cold and can lead to hoarseness or loss of voice.
yes Most boys will find their voice will deepen but a few will have no difference at all.