Chapter 9 Lesson 1

Wegener’s continental drift hypothesis stated that all the
continents once joined together to form

• two major supercontinents.

• two major supercontinents and three smaller continents.

• one major supercontinent.

• three major supercontinents.

The hypothesis of continental drift is used to explain an
event that happened

• two million years ago.

• two hundred million years ago.

• two billion years ago.

• two hundred billion years ago.      

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What evidence supports Wegener’s hypothesis?

• The same mammal species exist on different continents.

• Major rivers on different continents match.

• Land bridges still exist that connect major continents.

• Fossils of the same organism have been found on
  different continents.

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Evidence about ancient climates indicates that

• glacial ice once covered much of what is now India and
  Australia.

• the countries found in the Northern Hemisphere today
  were once centered over the South Pole.

• no continents occupied the Northern Hemisphere.

• the countries found in the Southern Hemisphere today
  were once centered over the North Pole.

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Alfred Wegener hypothesized that --------- was
broken apart by the process of continental drift.

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Wegener first began to think about his continental drift hypothesis
when he noticed a similarity in ----------- on different
continents.

One type of evidence that supports Wegener’s continental drift
hypothesis is the existence of _________ that begin on
one continent and continue on another.

Layers of _ _ _ _ _ _ _  found in Africa, South America,
India, and Australia help to support the continental drift
hypothesis.

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Identify the landmass labeled A

Identify the Land mass labeled D.