4.2 Restless Continents Flashcards
1
Q
the hypothesis that states that the continents ounced formed a single landmass broke up and drifted to their present locations
A
continental drift
2
Q
the process by which new oceanic lithosphere forms as magma rises towards the surface and solidflies
A
sea-floor spreading
3
Q
one huge landmass 245 million years ago
A
pangaea
4
Q
places where sea-floor spreading takes place
A
mid ocean ridge
5
Q
when Earth’s magnetic poles switch places
A
magnetic reversal
