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IB ESS HL 8.1.4 Global population growth models Question Bank

Practise IB ESS SL/HL 8.1.4 by applying global population growth models concepts to exam-style environmental systems questions.

Syllabus
First assessment 2026
Course
ESS HL
Level
HL

Exam points

  • identify the relevant environmental system, process or evidence
  • apply the correct ESS concept and explain the causal relationship
  • evaluate the outcome using ecological, social or management evidence

8.1.4—Global population growth models question 1

[Maximum number: 3]
Figure: World population figures, 1950–2019, and predictions for 2020–2100

Figure:World population figures, 1950–2019, and predictions for 2020–2100

Figure: Countries and regions where population decreased by at least 1% between 2010 and 2019

Figure:Countries and regions where population decreased by at least 1% between 2010 and 2019

Question (a)

(a)

Using Figure: World population figures, 1950–2019, and predictions for 2020–2100, identify the year in which the median prediction of the world population will reach 10 billion.

[ 1 ]

Question (b)

(b)

Outline one reason for the uncertainty in predicting the world's population in

Figure: World population figures, 1950–2019, and predictions for 2020–2100.

[ 1 ]

Question (c)

(c)

Using Figure: Countries and regions where population decreased by at least 1% between 2010 and 2019, identify the region that has the most countries with a decrease in the percentage change in population between 2010 and 2019.

[ 1 ]
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