Q. 35.0( 1 Vote )

Answer question n

Answer :

(a) Common signs of sexual maturity in Boys-

i. Thickening of vocal cords due to which cracks in voice occurs.


ii. Initiation of sperm production.


Common signs of sexual maturity in Girls-


i. Shrillness invoice


ii. Initiation of ovulation and menstruation.


b) Decline in the Female to Male Sex Ratio; Gender Disbalance


c) Oral Contraceptive Pills(OCP)


d) The rate of birth and death in a given population determine s the size of a population.


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