Topic 5: Population

Question 1

Define “birth rate”.

Answer 1

The number of live births per 1000 people per year.

Question 2

Define “death rate”.

Answer 2

The number of people who die per 1000 population.

Question 3

Define “population growth rate (PGR)”.

Answer 3

The rate that a population increases or decreases during a period of time (e.g. one year).

Question 4

How do you calculate PGR?

Answer 4

Population Growth Rate
= (births - deaths) + (immigrants - emigrants).

PGR = (B - E) + (I - E)
PGR = ... + ...
PGR = ...

Question 5

Define “infant mortality rate (IMR)”.

Answer 5

The number of deaths of babies under one year of age per 1000 live births in a given population in a given period of time.

Question 6

Give 3 reasons why developing countries have high infant mortality rates.

Answer 6

1. There are not enough medical services.
2. There is hunger and malnutrition.
3. There is poverty.

Question 7

Give 4 reasons why developed countries have low infant mortality rates.

Answer 7

1. Improvements in medical technologies = good medical services.
2. The availability of healthy foods.
3. Clean drinking water.
4. Being able to afford warm clothes and well-constructed homes.

Question 8

Define “life expectancy”.

Answer 8

The average number of years a person/group of people born in the same year, are expected to live.

Question 9

Name 3 factors that affect life expectancy.

Answer 9

1. Gender.
2. Economic conditions.
3. Available medical care and diet.

Question 10

Conflicts and war generally d______ the birth rate and i______ the death rate.

Answer 10

1. Decrease.

2. Increase.