1.3 Causes Of A Change In Population Size

Question 1

Migration

Answer 1

The movement of people from one country or region to another.

Question 2

Birth rate

Answer 2

The average number of live births in a year for every 1000 people.

Question 3

Death rate

Answer 3

The average number of deaths in a year for every 1000 people.

Question 4

Fertility rate

Answer 4

The average number of children a female is expected to have in their lifetime.

Question 5

High death rates in LEDCs

Answer 5

• poor health care, few hospitals, doctors, nurses, clinics
• poor sanitation, hygiene, lack of toilets, dirty places
• poor access to safe, clean water, water borne diseases
• limited food supplies, malnutrition, starvation
• diseases spread easily, HIV, AIDS
• natural disasters, drought, flood
• lack of vaccinations, medicines, unable to cure diseases
• lack of education about healthy lifestyles
• lack of provision for elderly, pensions, senior homes

Question 6

Low birth rates in MEDCs

Answer 6

• availability of contraception, family planning, abortions
• educated in contraception, family planning
• can afford contraception, family planning, abortions
• traditionally small families
• very high expense of bringing up children because of high standard living
• many women have careers and are educated

Question 7

Origin and impact of HIV/AIDS

Answer 7

• HIV-1 in Central Africa, -2 in West Africa, mostly in women
• children infected when women give births
• low infant morality rate
• high orphan generation
• lack of state welfare
• poverty and lack of education