Teenagers are people aged 10-20 years, both male and female, with a change of mind and body, which may make it illegal. Therefore, we should know how to adjust them to fit the various changes.
Teens 10-20 years of age who is both male and female, to meet the physical and mental changes which may not behave properly, we should know how to adapt to suit the various changes.
Adolescence is the age 10-20 years. Both male and female will find a change in body and mind, which may make comply bad. Therefore, we should know how to adapt itself to the changes in various areas.