Question

what are changer see in girl at the time of the puberty

Answer 1

Development of secondary sexual characters. And also the start of menstrual cycle i.e the release of ovum, implantation in the inner wall of uterus and the menstrual flow.

Answer 2

some of teh changes seen in the girls at the time of puberty are as follows:
voice becomes thin,breasts enlarge,hips become rounded,mensturations begins,hair grow in a genetic area