Give reasons:(t) Blocking of fallopian tubes prevents pregnancy.(ii) Testes are located outside - abdominal cavity.(iii) Prenatal sex determination has been banned bylaw.
(i) Prevents passage of ovum and hence fertilization.(ii) Sperm production requires a temp. 1-3 degrees lower than body temp.(iii) Indiscriminate female foeticide / Imbalance in male-female Sex ratio.