2nd Form Geo Test term 1 Flashcards
(18 cards)
bTwo continental plates which meet have the same
a) Pressure
b) Strength
c) Density
d) Crust
C) Density
What direction do collision plate boundries move?
Towards
Where a conservative and oceanic plate meet what occours?
Subduction - where the oceanic plate will go over the continental plate.
What are convection currents
Where the core melts moltern rock
Where two continental plates meet theyb have the same pressure / True o False?
False they have the same DENSITY
A(n) ________________ is a sudden violent shaking of the ground created by friction and tension in plates due to volcanic activity
earthquake
what are waves caused by an earthquake under the sea called?
seisemic waves.
What plates are shield volcanoes found on.
Divergent plates.
How are shield volcanoes made?
Repeated eruptions being built up.
Why are plates constantly moving?
There are currents in the mantle, Convection currents. Like baggage claim at an airport although some plates pull themselves (especially in destructive plate boundaries as they will move closer towards the centre.
____________ bring plates together.
Converging
_____________ pulls plates apart.
Diverging.
What is the outer core made of?
Iron and Nickel.
Is the outer core
a) Solid
b) Liquid
c) Gas
Liquid
What is the mantle made of?
Rocky material.
Is the Inner core solid liquid or gas.
Solid
Why is the inner core solid?
GRAVITY KEEPS IT FROM BECOMMING LIQUID
