World at Risk Key Words 0.0 / 5 ? GeographyNatural hazardsASEdexcel Created by: verityhansenCreated on: 14-03-16 12:49 Widespread global threat due to environmental factors such as climate change.` Context hazard 1 of 26 A hazard formed by tectonic/geological processes. Geophysical hazard 2 of 26 A perceived natural event which has the potential to threaten both life and property. Hazard 3 of 26 A high risk combined with inability to cope. Vulnerability 4 of 26 A hazard becoming a reality in an event that causes death and damage to goods. Disaster 5 of 26 The probability of a hazard event occuring. Risk 6 of 26 How much solar radiation a surface reflects. Albedo 7 of 26 A long term shift in climate detected by a sustained shift in the average value for any climatic event. Climate change 8 of 26 When the levels of greenhouse gases in the atmosphere increase due to human activity. Enhanced greenhouse effect 9 of 26 Energy sources that are rich in carbon and release CO2 when burnt. Fossil fuels 10 of 26 A recently measured rise in the average surface temperature of the planet. Global warming. 11 of 26 The warming of the Earth's atmosphere due to the trapping of heat that would otherwise be radiated back into space. Greenhouse effect 12 of 26 The point at which a system switches from one state to another. Tipping point. 13 of 26 Where the output of a system acts to amplify or reduce further output. Feedback mechanism 14 of 26 How often an event of a certain size occurs. Frequency 15 of 26 The size of an event. Magnitude 16 of 26 A semi-molten zone of rock underlying the Earth's crust. Asthenosphere 17 of 26 A boundary between plates where the movement of plates is parallel to the plate margin and the plates slide past each other. Conservative boundary 18 of 26 A boundary between plates where the plates are moving apart. Constructuve boundary 19 of 26 A boundary between plates where the plates are moving together. Destructive boundary 20 of 26 The crust of the Earth. Lithosphere 21 of 26 Molten material that rises towards the Earth's surface when hotspots within the asthenosphere generate convection currents. Magma 22 of 26 Rigid, less dense slabs of rock floating on the asthenosphere. Plates 23 of 26 A localised area of the Earth's crust with an unusually high temperature. Hotspot 24 of 26 An upwelling of abnormally hot rock within the Earth's mantle. Plume 25 of 26 A zone of low atmospheric pressure near the equator. This migrates seasonally. Inter-trpoical convergence zone 26 of 26
Comments
No comments have yet been made