If similar fossil collections are found on two continents, now widely separated, what is a possible explanation?
One possible explanation is that at the time that the fossilized species lived, the two continents were part of a single landmass.
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Where does sea-floor spreading take place?a.convergent boundariesc.oceanic volcanoesb.transform boundariesd.mid-ocean ridges
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New oceanic lithosphere forms as a result ofa.sea-floor spreading.c.reverse polarity.b.normal polarity.d.continental drift.
Magnetic reversals have helped to supporta.the theory of Pangaea.c.sea-floor spreading.b.the age of the Earth.d.the theory of Gondwana.
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What is it called when Earth’s magnetic poles change places?a.a strike-slip faultc.sea-floor spreadingb.magnetic reversald.continental drift
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