Earthquakes And Volcanoes Flashcards
1
Q
At what two plate boundaries do volcanoes occur?
A
Constructive and destructive
2
Q
Where do earthquakes take place?
A
At a plate boundary and anywhere
3
Q
What causes tectonic plates to move?
A
Convection currents
4
Q
What happens at constructive plate boundaries?
A
Plates move apart and magma rises up
5
Q
Which is heavier oceanic or continental crust?
A
Oceanic
6
Q
What happens at a destructive plate boundary?
A
Plates move towards each other and the oceanic plate is sub-ducted
7
Q
What happens at a conservative plate boundary?
A
Plates slide past each other and get stuck. When pressure is released an earthquake occurs
