Hazard Distribution Flashcards
1
Q
What type of hazards usually occur near plate boundaries
A
Geophysical hazards
2
Q
What is the earths crust made up of
A
Huge plates called tectonic plates that sit on top of the mantle
3
Q
How many types of crust are there
A
2
4
Q
Continental crust
A
Mostly above sea level
Thinner but less dense
5
Q
Oceanic crust
A
Mostly below sea level
Thinner but more dense
6
Q
What do the plates move because of
A
Convection currents in the mantle-currents are caused by temperature difference within the mantle
7
Q
Three types of plate boundaries
A
Destructive
Constructive
Conservative
