Study Fig. 4.1, which shows the distribution of active volcanoes. [Figure 4.1]
- (a)Describe the distribution of volcanoes shown on Fig. 4.1.[4]
- (b)Explain how volcanoes have been formed at location X.[2]
- (c)In some parts of the world people live close to volcanoes. Suggest two ways that they can reduce the risk of death if the volcano erupts.[2]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2018). The mark or mark type is shown in brackets.
- [4] Plate boundaries
- West of N / S America (plate)
- Around Pacific (plate)
- Middle of Atlantic
- Between Europe and Africa (plates)
- East Africa / African rift valley
- North / east of Australian plate
- Edge of Philippine plate
- Named country
- [2] Plates converge / destructive boundary
- Nazca plate subducts
- Melting
- Magma rises
- Lines of weakness on edge of crumpled plate
- [2] Have an evacuation plan / evacuate
- Be linked to an early warning / monitoring system
- Practice emergency drill / first aid training
- Know the escape routes
- Keep an emergency kit / survival kit / first aid kit
- Dust masks
- Building modifications such as strong roof / fire proofing
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