Population

Question 1

Define population

Answer 1

Population is the number of people in an area at a given time

Question 2

Define population density

Answer 2

Population density is the number of people per km2

Question 3

What is the formula for population density

Answer 3

Population density = population divided by area = people/km2

Question 4

How do you work out how many times bigger one population is compared to another

Answer 4

Larger population divided by smaller population = how many times more people in a square km are in ‘larger place’ than ‘smaller place’

Question 5

By how many does the world’s population increase every year?

Answer 5

By over 50 million people

Question 6

Where are the greatest population increases?

Answer 6

India, South America, China and other parts of Asia.

Question 7

How are the populations of countries, cities, towns and villages obtained by governments?

Answer 7

The populations of countries, cities, towns and villages are obtained by governments which conduct a CENSUS every 5 to 10 years.

Question 8

What is a census?

Answer 8

A census is an official count of a population

Question 9

How are people who will be conducting the serveys trained?

Answer 9

People who will be conducting the census are trained in gathering data and they are allocated specific areas.

Question 10

How is the census conducted?

Answer 10

1. Officials are sent to individual households in the country and complete a form asking about the number of people in the “house” (and their specifics)
2. Officials do not count each square km as that is too difficult to manage; they take large samples from areas and extrapolate the data from that.
3. The data is then collated over 2 to 3 years before being published.
4. This info is sent to the government
5. They then decide which portion of TAX income will be spent on amenities

Question 11

What questions are asked while conducting a census?

Answer 11

1. Number of people in the house
2. Gender
3. Age
4. Income
5. Cars
6. Electronics
7. White goods/appliances

Question 12

What factors can make a census inaccurate?

Answer 12

1. Births and deaths change the population all the time
2. Human error
3. People could lie
4. Samples may be too small

Question 13

What is the estimated world population going to be in 100 years?

Answer 13

It is estimated at around 12 billion.

Question 14

When comparing populations, one has to make a fair comparison. What dies this mean?

Answer 14

It means that all the constant variables must be the same, except the ones being tested.