<prompt> Early adolescent age is -8-11 years10-13 years14 - 15 years16 - 19 years  <response>: Ans. is b i.e., 10-13 years WHOUN definitions Adolescent-10-19 years Early adotescent-10-13 years Middle adotescent-14-15 years Late adolescent-16-19 years Youth-15-24 years Young people-10-24 years 