3.4 Continental Drift

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Continental Drift
Geo 12
Name______________
For each of the following, indicate if the statement is true or false. If false explain why it is false.
1. The presence of similar rock formations on different continents was the first piece of evidence that
led some scientists to believe that the continents were once connected.
T
or
F
2. Evidence of the existence of ancient glacial deposits can presently be found near the equator in
Africa.
T
or
F
3. Fossils of the freshwater reptile Mesosaurus have been found on all five continents of the world.
T
or
F
4. The major criticism of the continental drift theory by scientists of the day was the apparent lack of a
driving mechanism or cause for movement of the continents.
T
or
F
5. Approximately 150 million years ago, Laurasia broke off into two landmasses, Gondwana and
Pangaea.
T
or
F
6. For each piece of evidence supplied by Wegener in support of continental drift, briefly describe how
the evidence supports the theory.
a) fossil evidence, particularly Mesosaurus
b) glacial evidence
c) distribution of climate belts
d) lithological evidence
e) orogenic or mountain chain evidence
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