World at Risk Key Words

1. The point at which a system switches from one state to another. (7, 5)
2. Molten material that rises towards the Earth's surface when hotspots within the asthenosphere generate convection currents. (5)
6. A hazard becoming a reality in an event that causes death and damage to goods. (8)
7. Widespread global threat due to environmental factors such as climate change.` (7, 6)
8. Rigid, less dense slabs of rock floating on the asthenosphere. (6)
9. A semi-molten zone of rock underlying the Earth's crust. (13)

2. The size of an event. (9)
3. A localised area of the Earth's crust with an unusually high temperature. (7)
4. The crust of the Earth. (11)
10. A perceived natural event which has the potential to threaten both life and property. (6)

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