Your question needs to be reworded.
Your body becomes an adult when it goes through puberty. There are many different changes that take place. Vocal change, hair growth in various places, and an occurance of body odor. Not to mention many other hormonal changes which directly cause these things.
well everyone goes through puberty but girls experience enlargement of breast and go though a menstrual cycle called a period.
Do not worry, such thing never happens. Everyone goes through puberty. Some might start at a later age.
The main thing that happens is that the body becomes sexually mature. After puberty, the body is capable of reproduction.
Puberty happens at its own pace. Everyone goes through puberty at their own pace. Some go through it fast. Some slow.
Nothing causes it it happens on its own
yes, this happens both when men and women go through puberty
The become sexually active and able to reproduce.
yes, it is called bloating and happens to every girl during puberty
Puberty happens naturally. You don't have to do anything special to got through it. Just proper diet and exercise is important.
No, you will go through puberty whether or not you had chickenpox.
It probably means that you're starting to go through puberty. It doesn't all happen in one go - one thing happens at a time
Everyone goes through puberty, unless your hormones are whack.
You will go through puberty but you might not even realise. Some people are late starters and 14 is not too late to start anyway. It can happen as late as 16 in some cases.