EARTH: AN INTRODUCTION TO PHYSICAL GEOLOGY

Chapter 2: Plate Tectonics: A Scientific Revolution Unfolds

Concept #1 Quiz

Choose the best possible answer to the following questions about Key Concept 1 "Wegner’s hypothesis of 'continental drift' and the breakup of a former supercontinent (Pangaea)."

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1. Besides the fitting together of the continents, Wegener’s idea of continental drift was based upon which of the following?  

2. What was the main reason why Wegener’s ideas of continental drift were rejected by many scientists?  

3. According to Wegener's hypothesis that continents are moving today, what supercontinent apparently broke up about 200 million years ago?  

4. Back in Wegener's day, which of the following was NOT used to support his continental drift hypothesis ?  

5. To explain continental drift, Wegener proposed that the continents broke through the oceanic crust, much like ice breakers cut through ice.  
 
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