A guy's voice typically begins to change during puberty, which can start around ages 11 to 14 and may continue to develop until about age 18. The process involves the lengthening and thickening of the vocal cords, leading to a deeper voice. While significant changes can occur within a couple of years, individual development can vary widely based on genetics and other factors. Ultimately, the voice may continue to mature even into the early twenties.
1 month
they do?
About five years.
Patience.
imediately
It's May be take 2 days
A person does not 'develop' autism - a person is born autistic.
From the time your breasts begin to develop, it should take two to three years to completely develop, however some girls do develop slower or faster than that.
It all depends on when and how you hit puberty, if your voice is breaking now, a couple of months maybee
Eight thousands years
1/2 years
An penguin is a bird that can take a very long time to develop from an egg to an adult.