Spacing method and Terminal method

Discuss the spacing method and intrauterine devices of family planning.

Differentiate between chemical method and Natural method

Differentiate between indigenous method and modern method of bee-keeping

Assertion : Sterilisation is a terminal method used only for males Reason : Sterilisation is highly effective and its reversibility is very good.

Which of the following statements are correct regarding surgical methods of contraception ? (i) These are generally advised to the male/female partner as a terminal method to prevent any more pregnancies (ii) Surgical procedure in male is called tubectomy and that in the female, vasectomy (iii) Reversibility is easily possible (iv) They block gamete transport and thereby prevent conception.

Discuss leaching method of concentration of ores.

Which is not a spacing method of family planning?

Which is not a constituent of chemical method?