everybody is different. the average is usually around 12yrs old grade, 6-9
No, it is impossible.
Each person is different so there is no normal.
Yes, puberty can start earlier than 11-years-old for many children.
Yes. It's the start of puberty, of becoming an adult.
Well, depending on the gender I'd say that a boy will start puberty at maybe 13 and a girl at 12. It's different for all people though.
The average age to start puberty (for boys) is ages 11 - 13 or 14. It is extremely common and very normal for a 10-year-old's body to enter into the phase of life called, "Puberty".
No. Boys do not start producing viable ejaculate until puberty
Oh, 70 to 80 years or so.
It doesn't really matter until you start puberty, then you should start caring.
No. Your penis starts to grow after about a year of starting puberty. It grows in lenght initially. After roughly 2.5 years it gets thicker.
It's not necessary to know when he started puberty. Most boys start at around 12 or 13-years-old.
Yes, some boys start puberty earlier than average, and some start later. Puberty normally begins between the age of 9 and 13.