Hazards Flashcards
(58 cards)
The earth’s crust is broken into pieces, like the shell of an egg. What are these pieces called?
Plates
What is the outermost layer of the earths called?
The crust
Which factor affecting hazard risk does this explanation match?
“In poorer parts of the world people are forced to live in hight risk areas because they can’t afford to live elsewhere”
Poverty
A solid part of earth, and also the hottest part is the…
Inner core
Heat from the earth’s core creates convection currents is the mantle. True or false
True
The movement of the plates is caused by…
Convection currents
The edges of the plates are called plate boundaries. True or false
True
What is a natural hazard?
An extreme natural event that threatens people or has the potential to cause damage, destruction and death
The point underground where an earthquake begins is the…
Focus
What is an example of a primary effect?
Deaths and injury
The uk is on the Eurasian plate. True or false
True
Finish the sentence.
At a destructive plate margin there will be…
Large earthquakes and volcanoes
The epicentre is…
The point on the ground nearest to where the earthquake occurred
How many layers does the earth have?
4
Describe a constructive plate margin
Plates are moving away from each other
Give an example of a tectonic hazard?
Volcanic eruption
What do the 3 Ps stand fro o help reduce the impacts of earthquakes…
Protect, predict, prepare
What is the layer beneath the crust called?
The mantle
Hazard
Any threat or danger to humans or the environment
Natural events
Event that poses no threat to property or through a loss of life
Risk factor
Anything that may affect the damage or danger that natural hazards can cause
Continental crust
Older, lighter and permanent
Oceanic crust
Younger, heavier, constantly being destroyed and replaced
Plate
A big piece of the earths crust. There are 7 of them
