Why do adolescents become independent than before?

Which of these do not follow independent assortment?

Why are adolescents especially advised not to smoke ? How does smoking affect the functioning of the body ?

Which one of the following satisfactions helps our children from infancy outwards to adolescence equipped with a sense of achievement recognition and independence?

During which of the following types of reproduction do the fully matured tiny individuals detach from the parent body and become new independent individuals?