IB ESS HL 6.1.1 Atmosphere Boundary Questions

Practise IB ESS HL 006.001.001 by applying atmosphere boundary concepts to environmental systems questions.

Syllabus
First assessment 2026
Course
ESS HL
Level
HL

IB ESS HL 6.1.1 Atmosphere Boundary Questions question 1

[Maximum number: 1]
Gas composition of the troposphere by volume

Figure:Gas composition of the troposphere by volume

Figure 1 shows the percentages (by volume) of gases in the troposphere.

Label gases A and B on Figure 1.

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