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Question 1

What are the UN predictions for the human population in 2100 based on?

Answer 1

Evidence and various factors affecting population growth.

Question 2

Why is there a range of possible world population figures?

Answer 2

The future cannot be predicted due to various factors.

Question 3

What factors can change future population predictions?

Answer 3

Birth rates, death rates, natural disasters, diseases, changes in population policies, and medical advances.

Question 4

What are the three scenarios for UN World Population Prospects?

Answer 4

Medium, High, and Low.

Question 5

What is the birth rate?

Answer 5

The number of live births per thousand people per year.

Question 6

What is the death rate?

Answer 6

The number of deaths per thousand of population per year.

Question 7

What is the infant death rate?

Answer 7

The number of deaths of children under 1-year-old per thousand of population per year.

Question 8

What is natural increase?

Answer 8

The difference between birth rate and death rate.

Question 9

What factors affect birth and death rates?

Answer 9

1. High infant mortality leads to high birth rates in LEDCs.
2. Larger families in farming economies.
3. Economic factors in MEDCs reduce birth rates.
4. Social and political factors affect birth control usage.

Question 10

What factors increase life expectancy?

Answer 10

1. Better healthcare.
2. Better nutrition.
3. Better quality of drinking water.
4. Better sanitation.