Mrs S- Natrual Hazards, Tectonic Hazard/Plate, Haiti,New Zealand. Flashcards
Define Natural Hazards
A natural event that threatens people or has the potential to cause damage, destruction and death
Give examples of tectonic hazards
Earthquakes, tsunamis, volcanoes
Give examples of atmospheric hazards
Tropical storms, climate change, drought, freezing conditions, hurricanes/cyclones, heatwaves, low pressure storms, blizzards, flooding, frost, tornadoes
Give samples of geomorphology all hazards
Avalanches, landslides, flooding
Examples of biological hazards
Forest fires
How are tsunamis category linked to tectonic hazards
Tsunamis are a tectonic hazard doomed by earthquakes and volcanoes, however they can be caused by landslides
Can some natural hazard be influenced by humans and why
Yes because human influences climate change and forest fires.
Has global warming increased or deacresed and how
Global warming has increased by frequency and magnitude of natural hazards
Eg flood, forest fires, droughts,hurricanes
Has deforestation increased or deacresed
Increases
Eg floods, landslide
Has urbanisation increased or deacresed
Increased
Eg flooding
Is there a increase or decrease of population
Increase
Which location are more prone to natural hazard
Japan
Eg cyclones
Is LIC’s more at risk and why
Yes because peer economies for preparation and protection
Where do natural hazards occur
Earthquakes: Haiti, Chile
Volcanic eruption: Iceland,Indonesia ,
Flooding: China
Avalanches: Pakistan
Define crust
The outer most layer of the earth 5km-90km
Define Mantle
A layer of rock between the core and the crust made of molten rock includes magma
Is the outer core solid or liquid
Liquid
Is the inner core dense and is it a solid or a liquid
It is very dense and a solid rock
Learn the table
Learn the table in book on post it note
Learn the plate boundaries
On the poster
What makes tectonic plate move
Convection current
What is the core temperature around
6000 degrees
What does the core temperature cause
The molten rock magma to rise in the mantle and sinks towards the core when it cools
What do the current flow carry in the mantle
The plate margins
What is a slab pull theory
At the constructive margins ocean ridges from above the ocean floor. Beneath it the mantle melts (molten magma rises as the plates move apart and cools down from a new plate material)
As it cools it slides down the ridge making the plates to move away (ridge push)
What does a destructive margin do
The plate gets denser and sinks back into the mantle under the influence of gravity which pulls the plate along with it (slab pull)
Learn Haiti & New Zealand in folder
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