IB Biology SL 4.3.2 Climate Feedback
Practise identifying global-warming consequences and positive feedback cycles involving ice, albedo and greenhouse gases.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Identify positive climate feedbacks involving ice, albedo and greenhouse gases.
D4.3.2—Positive feedback cycles question 1
[Maximum number: 1]
Which of the following may contribute to a positive feedback cycle in global warming?
A
The release of methane from thawing ice caps
B
The uptake of carbon dioxide by a reforested area
C
Higher temperatures increasing photosynthesis rates
D
The accumulation of peat in swamps
A
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