The Earth's Structure Flashcards
1
Q
What are the four sections of the earth’s structure?
A
Crust, Mantle, Outer Core and Inner Core.
2
Q
What takes place within the mantle that causes convection currents?
A
Radioactive decay.
3
Q
What is the core suspected to be made of?
A
Iron and nickel.
4
Q
What causes tectonic plates to drift?
A
The convection currents in the mantle.
5
Q
Where do earthquakes usually occur?
A
On the boundaries between two tectonic plates.
6
Q
Why are earthquakes hard to predict?
A
Because they’re sudden and there are no accurate clues or indicators that give a sign as to when the earthquake will happen.
