unit 1??? Flashcards
Asthenosphere
Is the highly vicious region between the upper mantle of the earth. It lies below the lithosphere at depths between 100/200 km
Crust
Is the outer layer of the earth,where we live.
Epicentre
Point above the focus on the earths surface where the shockwaves are first felt
focus
is the centre of the earthquake in the earths crust. it is the exact point where the earthquake begins.
inner core
is in the centre of the earth and is the hottest part of the earth. The inner core is solid and made up of iron an nickel wih temps of up to 5500C With its immense heat energy, it is the engine room of the earth
LEDC
Less economically developed Country
Lithosphere
The rigid outermost shell of a rocky planet
Mantle
It has a diameter of approx 2900 km. it is made up of semi molten rock called magma. IN the upper parts of the mantle the rock is hard,but lower down nearer the inner core, the rock is soft and beginning to melt.
MEDC
MOre economically developed country
Natural Hazard
IS an event caused by nature (an act of god) which is percieved by people to be a threat to life and/or property EG.
Flood
Fire
Earthquake
Volcano
Tornado
Outer Core
is the layer surrounding the inner core. It is a liquid layer, also made up of iron an nickel. it is still extremley hot here, with temps similar to th inner core
Plates
large slabs of the earths crust that float on the mantle
Ring of fire
String of volcanoes and sites of seismic activity, or earthquakees, around the edges of the pacific ocean
Volcano
is a cone shaped mountain made up of ash and lava
continental crust
older, permenant, less dense
oceanic crust
Can be created, destroyed, dender,younger
What are the four main types of plate boundary
COntructive,destructive,conservative and collision
