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In a volcanic alert, the best option is the ___ ____ of the population

controlled evacuation

In regions of seismic risk there are 3 steps that can be taken for prevention of major catastrophes... what are they?

land planning, build seismic resistant infrastructure and have an emergency response plan

For prediction, it is important to study signs that ____ is accumulating beneath the volcano

magma

For prediction, it is important to study the accumulated ____ in fault blocks

tension

What two things can help reduce seismic and volcanic risk? (start with letter P)

prediction and prevention

Which type of eruption has alternate layers of lava and pyroclasts and cause strato volcanoes?

Vesuvian

Which type of eruption has very fluid lava (Hawaiian, Vesuvian or Peléan)?

Hawaiian

Which type of eruption has very viscose lava (Hawaiian, Vesuvian or Peléan)?

Peléan

True or false: magma has the same viscosity in all volcanoes

False... some have magma which is more viscose (thick) and others more fluid

Erosion, transport, sedimentation and diagenesis... are these internal or external processes?

external

Metamorphism, magmatism and orogenesis... are these internal or external processes?

Internal

External geological processes are moved by ___ and ___

solar energy and gravity (solar energy evaporates water causing rainfall which leads to rock weathering and gravity makes rivers flow downstream+ affects tides)

True or fase: both volcanoes and earthquakes are located on the boundaries between plates

true

The formula for geological risks is RISK=

Hazard x vulnerability

Seismic waves transmit

Vibration

In an earthquake, the point on the Earth's SURFACE closest to the hypocentre is called

The epicentre

The point where an earthquake starts (deep within the earth) is called the

Focal point or hypocentre

Internal geological processes are driven by

The Earth's internal heat

The two mosy well-known internal processes are

Volcanoes and earthquakes

Internal or external processes? Those that flatten the relief

External

Internal or external process? Those that raise up the relief

Internal

Name 5 types of geographical features on Earth's relief

Mountains, valleys, plains, islands, volcanoes, etc

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