6.2 Climate change — causes and impacts Quiz
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5 questions, one answer each
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1. Which is a negative feedback loop?
- A. Melting ice lowering albedo
- B. Thawing permafrost releasing methane
- C. More CO2 increasing plant growth that removes some CO2
- D. Dying rainforest releasing carbon
2. (HL) Dendrochronology is the study of
- A. ice cores
- B. tree rings
- C. pollen grains
- D. sea levels
3. (HL) Hindcasting is used to
- A. test a model against past data
- B. predict next year's weather
- C. measure CO2 in ice
- D. count species
4. The Great Barrier Reef bleaches when
- A. sea temperatures are unusually high for weeks
- B. the water is too cold
- C. UV is absorbed by ozone
- D. tides are too high
5. (HL) A tipping cascade is
- A. a single threshold
- B. a chain of tipping points triggering each other
- C. a negative feedback
- D. a type of model