Questions on Volcanoes, Plate Boundaries and Earthquakes 0.0 / 5 ? GeographyNatural hazardsGCSEEdexcel Created by: theninjaemuCreated on: 29-04-16 17:27 What are the differences between oceanic and continental crust? Continental crust is thicker and made of granite. Oceanic crust is thinner and made of bassalt 1 of 10 What are the 3 plate boundary types? Constructive plate boundary, conservative plate boundary, destructive plate boundary 2 of 10 What landforms are commonly found at a subduction zone? Volcanoes 3 of 10 Where is an example of a conservative plate boundary? Between the North American plate and the Pacific plate (San Andreas Fault) 4 of 10 What are the characteristics of a shield volcano? Gentle sloping sides, low apex, wide base, fluid lava (basaltic), frequent but non-violent eruptions 5 of 10 What are the characteristics of a composite volcano Steep sloping sides, high apex, narrow base, viscous lava (andesitic), infrequent but violent eruptions 6 of 10 What are primary effects? The immediate effect of an earthquake on property and people e.g. the shaking causes buildings to fall down 7 of 10 What are secondary effects? The impact on property and people after it has finished e.g. lack of shelter due to the collapse of buildings 8 of 10 What are the 2 scales that earthquakes are measured on? Richter Scale (how powerful the earthquake is); Mercalli Scale (visual damage) 9 of 10 Give ways to make a building earthquake proof Deep foundations, shock absorbers built into the structure, lightweight materials used, cross bracing to prevent floors collapsing 10 of 10
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