The challenge of natural hazards: Natural hazards - Tectonic Plate/ Convection Currents Flashcards
1
Q
Earth structure (centre to surface)
A
. Inner core
. Outer core
. Mantle
. Crust
2
Q
Convection ccurrents
A
Heat from the core causes convection currents in the mantle. These cause the mantle to move as it heats and cools. These currents slowly move the crust around.
3
Q
Crust
A
The crust is made up of a number of plates.
4
Q
Oceanic crust
A
Dense and thin.
5
Q
Continental crust
A
Less dense and thick.
6
Q
Why do plates move?
A
Convection currents.
