Restless Continents Question Preview (ID: 49725)


14.2. TEACHERS: click here for quick copy question ID numbers.

Wegener thought that all the continents were once together in one large continent called
a) Gondwana
b) Larasia
c) Pangaea
d) Erasia

New oceanic lithosphere forms as a result of
a) sea-floor spreading
b) normal polarity
c) reverse polarity
d) continental drift

Evidence for sea-floor spreading has come from
a) fossils in South America and Africa.
b) magnetic minerals on the ocean floor.
c) ancient climactic conditions.
d) the breakup of Pangaea.

Hypothesis that states that the continents were once one large mass that broke apart
a) continental drift
b) sea-floor spreading
c) magnetic reversal
d) fossils

process that takes place at mid-ocean ridges
a) continental drift
b) sea-floor spreading
c) fossils
d) magnetic reversal

part of molten rock at mid-ocean ridges
a) fossils
b) continental drift
c) magnets
d) magnetic minerals

process of Earth’s magnetic poles changing places
a) fossils
b) sea-floor spreading
c) continental drift
d) magnetic reverals

items that provide evidence that the continents were once closer together
a) fossils
b) animals
c) continental drift
d) ice

The fact that similar fossils are found on both sides of the ocean is evidence of
a) global positioning.
b) magnetic reversal.
c) continental drift.
d) oceanic drifts.

At mid-ocean ridges,
a) the crust is older
b) the crust is younger
c) oceanic crust is destroyed
d) tectonic plates are colliding

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