IB ESS SL 6.4.6 Ozone Depleting Substances Odss Questions
Practise IB ESS SL 006.004.006 by applying ozone-depleting substances (odss) concepts to environmental systems questions.
- Syllabus
- First assessment 2026
- Course
- ESS SL
- Level
- SL
Exam points
- identify sources and chemicals associated with ozone-depleting substances and distinguish stratospheric from tropospheric ozone effects
- explain how human activities affect stratospheric ozone, including observed trends, projected recovery and ozone exposure
- apply ozone charts and case evidence to distinguish the causes of ozone depletion from recent global warming and explain changes in ozone levels
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IB ESS SL 6.4.6 Ozone Depleting Substances Odss Questions question 1
Figure:Observed and projected changes in global stratospheric ozone
Question (a)
(a)
State one chemical responsible for the trend in the recorded annually averaged data between 1980 and 1990 shown in the stratospheric-ozone chart shown above.
[ 1 ]
Question (b)
(b)
Describe two reasons for the projected change in ozone levels after 2020 in the stratospheric-ozone chart shown above.
[ 2 ]
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