IB ESS HL 6.4.4 Uv Radiation Impacts Questions
Practise IB ESS HL 006.004.004 by applying uv radiation impacts concepts to environmental systems questions.
- Syllabus
- First assessment 2026
- Course
- ESS HL
- Level
- HL
Exam points
- explain how ozone changes affect photosynthesis and global biodiversity
- describe DNA damage and human impacts including sunburn, ageing and cataracts
- evaluate impacts of stratospheric ozone depletion on plants, phytoplankton and other organisms
IB ESS HL 6.4.4 Uv Radiation Impacts Questions question 1
[Maximum number: 4]
Outline how decreasing stratospheric ozone may impact living organisms.
Decreased stratospheric ozone increases UV radiation that reaches the earth from the sun;
b. UV radiation can harm sensitive species such as marine organisms (e.g. phytoplankton/coral reefs)/amphibians;
c. UV radiation can damage chloroplasts decreasing plant growth/crop yields/photosynthesis;
d. decreased plant growth/sensitive species can have knock on effects on the food chain/web/decrease access to food;
e. UV radiation can cause mutations/skin cancer/cataracts;
f. UV radiation can weaken the immune system;
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