A nine year old boy is 120 cm tall. If the present height of boy is 75% of his full height, calculate the full height which the boy will eventually reach at the end of growth period.

5

How does the height of boys and girls change during puberty?

6

Name one factor on which the height of a person depends.

8

How do shoulders and chest change in boys during puberty?

9

How do hips of girls change during puberty?