IB ESS HL 8.1.7 Age-sex pyramids Question Bank
Practise IB ESS SL/HL 8.1.7 by applying age-sex pyramids concepts to exam-style environmental systems questions.
- Syllabus
- First assessment 2026
- Course
- ESS HL
- Level
- HL
Practise IB ESS SL/HL 8.1.7 by applying age-sex pyramids concepts to exam-style environmental systems questions.

Figure Crude birth rate, crude death rate, total population (1960-2024) and predicted total population (2025-2100) for South Korea

Sketch the shape of the age-gender pyramid for 2024 that would lead to the predicted total population changes from 2024 to 2100, as shown in Figure.
A population pyramid is shown in the rough shape of a stage 4/5 pyramid, the base and apex must be smaller than the middle (showing a clear decrease in lower and older age classes).
Award 1 mark if base narrows, and 1 mark if apex narrows
Axes do not need labelling for credit
