question_answer 45)

    During adolescence, several changes occur in the human body. Mark one change associated, with sexual maturation in boys (a) loss of milk teeth        (b) increase in height    (c) cracking of voice         (d) weight gain

Answer:

                  (c) Cracking of voice is associated with second maturation is boys which occurs during adolescence. During teenage a new set of changes occurs in boys and girls. In boys there changes includes-growth of hairs on face, cracking of voice etc. Loss of milk teeth increase in height and weight gain are the normal process of growth in both boys and girls as the body grows older.