Puberty is the period of physical changes to sex characteristics that marks the beginning of adolescense.
Explanation:
The puberty is a cascade of change, it is a process that results in adult appearance, in this period girls and boys become sexually mature.This is the period when emerge the most salient biological differences between female and male.
The girls start their menstruation and facial hair and deeper voice appeared in boys
<span>They can rais the number of crops produced in an amount of time, they can also reduce the need for harmful pesticides. However, they may cause more allergies in humans, producing a health risk.</span>