1. 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 weight gain

Answer is (c) cracking of voice

Explanation:

During adolescence Following changes occur in boys

• Growth of hairs in new parts of the body such as armpits, on chest and between thighs near genital organ face, legs and on arms.

• Creaking of voice
• Skin becomes oily and pimples will start appearing

• Occasionally penis will erect especially while