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Questions and Answers
What observations led Alfred Wegener to propose the idea of continental drift?
What observations led Alfred Wegener to propose the idea of continental drift?
- The continents seemed to be expanding
- The continents appeared to be sinking into the ocean
- The continents seemed to fit together like a puzzle and fossils of animals found on coasts of different continents also aligned (correct)
- The continents seemed to be shifting rapidly
What term did Alfred Wegener use to refer to the original land mass?
What term did Alfred Wegener use to refer to the original land mass?
- Pangaea (correct)
- Rodinia
- Gondwanaland
- Laurasia
What was the significance of Alfred Wegener's 1912 lecture?
What was the significance of Alfred Wegener's 1912 lecture?
- It introduced the concept of plate tectonics
- It discussed the formation of oceanic trenches
- It proposed the idea of ice ages
- It challenged existing theories about continental drift (correct)
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Study Notes
Alfred Wegener and Continental Drift
- Observations of fit of continents, similarities in fossil species, and matching of rock formations on different continents led Alfred Wegener to propose the idea of continental drift.
- Wegener used the term "Pangaea" to refer to the original land mass that broke apart to form modern continents.
- Wegener's 1912 lecture was significant because it introduced his theory of continental drift, which challenged the established view of fixed continents and sparked a new area of research in geology.
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