Define the following: Alfred Wegener, Pangaea, Evidence, Hypothesis, Theory, Continental Drift, Plate tectonics, Echo sounder. Answer the following questions: 1. What evidence did... Define the following: Alfred Wegener, Pangaea, Evidence, Hypothesis, Theory, Continental Drift, Plate tectonics, Echo sounder. Answer the following questions: 1. What evidence did Alfred Wegener collect to suggest that the continents were once put together and have been since moving apart? 2. Why was his idea of Continental Drift not accepted by the scientific community? 3. What war occurred that brought about the use of echo sounders? 4. What did Harry Hess find on the bottom of the ocean when he used the echo sounder? 5. Why is this significant?
Understand the Problem
The question prompts us to define several geological terms and answer specific questions related to the theories of continental drift and plate tectonics, particularly focusing on Alfred Wegener's contributions and evidence.
Answer
Wegener used fossils, geology for evidence; Hess found mid-ocean ridges; WWII used echo sounders.
- Wegener collected evidence from fossil records, mountain ranges, and glacial formations. 2. His idea was initially rejected because he couldn't prove how continents move. 3. WWII promoted the use of echo sounders. 4. Harry Hess discovered mid-ocean ridges. 5. This discovery supported the theory of continental drift.
Answer for screen readers
- Wegener collected evidence from fossil records, mountain ranges, and glacial formations. 2. His idea was initially rejected because he couldn't prove how continents move. 3. WWII promoted the use of echo sounders. 4. Harry Hess discovered mid-ocean ridges. 5. This discovery supported the theory of continental drift.
More Information
Wegener's findings were foundational, but Hess's discovery of seafloor spreading provided the mechanism Wegener lacked, leading to modern plate tectonics.
Tips
A common mistake is failing to distinguish between the concepts of 'hypothesis' and 'theory' in scientific contexts. Be sure to understand the evidence and mechanisms involved.
Sources
- 2.1: Alfred Wegener's Continental Drift Hypothesis - geo.libretexts.org
- READ: Alfred Wegener and Harry Hess (article) - Khan Academy - khanacademy.org
- Continental Drift and Plate Tectonics - Let's Talk Science - letstalkscience.ca
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