some important terms

• population
• population density
• demography
• birth rate
• death rate
• growth rate

main reasons for the rise in population

decline in the death rate

1. famine and flood relief methods

timely import of food grains and international corporation

1. improved medical facilities

progress in the fields of science has significantly lowered the number of deaths

high birth rate

1. low marriage age
2. religious & social attitude [patriarchal society]
3. economic attitude- children were seen as income
4. lack of family planning

problems faced due to overpopulation

demand for everything goes up due to the rise in consumers.

• energy
• forests
• minerals
• land
• food
• unemployment

methods of contraception

tubectomy

the fallopian tube is cut or clamped

vasectomy

the vas deference is cut and tied to block the pathway of the sperms

other methods

1. oral pill- synthetic progesterone & oestrogen mimic those produced during pregnancy & therefor no egg is released
2. condom
3. intrauterine device- due to presence of a foreign body in the uterus, blastocyst cannot implant
4. diaphram- condom for women
5. rhythm method