Answers

2015-04-01T17:46:52+05:30
(i) Sudden increase in height and weight.
(ii) Broadening of shoulders and widening of chest in boys. In girls, the region below waist becomes wider.
(iii) In boys, under the influence of hormones, the larynx becomes prominent, the vocal cords become longer and thicker. These changes cause the voice to become hoarse.
(iv) Appearance of hair in areas such as underarms, face, hands, and legs.
(v) Appearance of acne as a result of excessive secretion of oil from skin.
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2015-04-01T17:56:20+05:30
Changes during puberty :
1)Sudden increase in height and weight
2)Broadening of shoulders and widening of chest in boys . In girls , the region below waist becomes wider .
3)Appearance  of hair in area such as underarms , face , legs and hands .
4)Appearance of acne as a result of excessive secretion of oil from skin.
5) Testis grows and starts producing sperms in male , whereas in females the ovary enlarges and starts producing matured eggs .
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