plate tectonic theory Flashcards
1
Q
the lithosphere is broken up into large slaps of rock called…
A
tectonic plates
2
Q
why do the tectonic plates move?
A
due to convection currents in the asthenosphere
3
Q
what do the convention currents do?
A
push and pull the places in different directions
4
Q
how are convection currents caused?
A
when less dense magma rises, cools, then sinks
5
Q
what are the edges of where plates meet called?
A
plate boundaries/margins
