Questions and Answers 100% Solved
Natural Hazard - ✔✔A natural hazard is a natural process which could
cause death, injury or disruption to humans, or destroy proprty or
posesions.
Natural disaster - ✔✔A natural hzard that has actualy happened
Geological hazards - ✔✔Caused by kand and tectonic processes
Meteorological hazards - ✔✔Caused by weather and climate
Factors affecting hazard risk - ✔✔Urbanisation, poverty, development,
climate change
Tectonic plates - ✔✔Slabs of the Earth's crust
Continental crust - ✔✔thicker and less dense
Oceanic crust - ✔✔thinner and more dense
Tectonic plate movement - ✔✔caused by convection currents underneath
the Earth's crust
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,Destructive plate - ✔✔Two plates moving towards one another, oceanic
plate subducts under continental plate and friction causes melting of
oceanic plate, triggers earthquake
Constructive plates - ✔✔Two plates move apart, magma forces way along
gap and causes earthquake, erupted lava cools and forms volcano
Conservative plate - ✔✔Two plates moving alongside, friction can send
shockwaves causing earthquakes
Earthquake causes - ✔✔two plates 'jerking' past each other
the focus - ✔✔the point in the Earth the earthquake starts
Epicentre - ✔✔the point on the Earth' surface straight above the focus
Where are volcanoes found - ✔✔At destructive and constructive plate
marhgins
Where are earthquakes found - ✔✔At all three types of plate margin
Earthquake Primary effects - ✔✔buildings and bridges collapse
people are injured or killed
Roads are destroyed
Earthquake Secondary effects - ✔✔Can trigger landslides, tsunamis =
destruction
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, homeless can die from the cold
Leaking gas can start fires
Earthquake Immediate responses - ✔✔Rescue people trapped by
collapsed buildings and treat injured people
Recover dead bodies to prevent spread of disease
Foreign governments or charities may send aid workers, supplies ,
equipment or financial donations to the areas affected
Earthquake Long term responses - ✔✔Re-house people who have lost
their homes
Repair or rebuild damaged buildings, roads, railways and bridges.
Reconnect broken electricity, water, gas, communication connections
Volcanoes Primary effects - ✔✔Buildings and roads are destroyed by lava
flows and pyroclastic flows.
Buildings may also collapse if enough ash falls onto them.
People & animals are injured/killed by pyroclastic flows, lava,falling rocks
Volcanoes Secondary effects - ✔✔Mudflows form when volcanic material is
mixed with water and landslides cause destruction, death & injury.
Tourism can be disrupted straight after and the eruption - but often it can
increase afterwards with tourists interested in seeing volcanoes
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©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.