Syllabus Edition

First teaching 2024

First exams 2026

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Human Populations (DP IB Environmental Systems & Societies (ESS): SL): Exam Questions

7 mins4 questions
13 marks

Outline the meaning of the term Crude Birth Rate (CBR).

Do not give the formula for calculating CBR as your answer.

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22 marks

A country has a CBR of 37 births per 1 000 individuals and a CDR of 14 deaths per 1 000 individuals.

Using the formula provided below, calculate the Natural Increase Rate (annual growth rate) of this country.

N I R equals fraction numerator open parentheses C B R minus C D R close parentheses over denominator 10 end fraction

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31 mark

The figure below shows a simple version of a model used to study human populations.

demographic-transition

State the name of this model.

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41 mark

State the name of the particular type of graph shown in the figure below.

population-pyramid-niger
population-pyramid---japan

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