Question

Discuss the factors that cause changes in size of population.

Answer 1

1) BIRTH RATE-the number of live births per 1000 in a year

Birth rates are affected by such factors as nutrition, fertility, attitudes about abortion, labour value of children, government policies, social value, the availability of contraception and culture.


2) DEATH RATE-the number of deaths per 1000 in a year

Death rates are affected by disease, war, medical technology, improved health care, transportation development and nutrition.


3) IMMIGRATION - The number of people moving into a country.

4) EMIGRATION - The number of people leaving a country