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43. (a) What substances are contained (i) in oral pills, and (ii) in vaginal pills, used as contraceptives? How do
they work?
(b) How does copper-T prevent pregnancy ?
(c) Name the disease caused by HIV.
control fornrosentino nrernancy yazhich is carried out
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Answer:
A) It contain progestrone or oestrogen and it inhibits the maturation of egg
B) it inhibits the movement of sperms and inhibits the fertilisation.
C) it cause the diseases aids
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