IB ESS HL 6.4.8 Montreal Protocol Questions
Practise IB ESS HL 006.004.008 by applying montreal protocol concepts to environmental systems questions.
- Syllabus
- First assessment 2026
- Course
- ESS HL
- Level
- HL
Exam points
- identify CFC phase-out, substitutes, international cooperation, education, technology and natural atmospheric breakdown as causes of projected ozone recovery
- explain how the Montreal Protocol and related measures reduce ozone-depleting substances and allow stratospheric ozone to recover
- use ozone data to distinguish observed trends from projected recovery and connect policy to atmospheric outcomes
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IB ESS HL 6.4.8 Montreal Protocol Questions question 1
[Maximum number: 1]
Identify one method to reduce ozone-depleting substances.
Any one of the following: find substitutes for Ozone Depleting Substances (ODS);
ban ODSs;
international agreements, eg Montreal Protocol;
develop new technology, eg pump action aerosols;
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