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Childhood-A period of time in a human life where as they are learning and copying insights from their parents and at school etc. (young age) 

Adolescent- A period of time in between adulthood and childhood.Children become more mature and become teenagers or preteens. 

Basically childhood is from a toddler to a kid and adolescence is from a kid to a preteen or teen. From immature to mature.
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mark as brainliest , if helpful plzz ;)
how to I dont know sorry
btw thanku
after some time there will be option .....pleasure is mine
Primary sexual characters which is maintained by release of sex hormones during puberty