Alfred Wegener and Continental Drift Theory

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@BetterKnownAmaranth

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Questions and Answers

What was the name of the supercontinent proposed by Alfred Wegener?

Gondwana

Laurasia

Rodinia

Pangaea (correct)

What evidence did Alfred Wegener use to support his hypothesis of continental drift?

Dissimilar climates and coastlines

Matching coastlines and mountain chains (correct)

Unmatched rock types and glacial evidence

Different plant and animal fossils

Who created the first scientific map of the entire ocean floor?

Alfred Wegener

Sonar technology

Harry Hess

Marie Tharp (correct)

What technology was used in the early 1900s to calculate the distance to the ocean floor?

Sonar Signup and view all the answers

Why was Alfred Wegener's hypothesis of continental drift initially rejected?

"He could not explain how continents drifted apart" Signup and view all the answers

What did Harry Hess use in 1960 to explain Sea-Floor Spreading?

SONAR images Signup and view all the answers

What is the deepest trench on Earth located within?

Deep-Ocean Trenches Signup and view all the answers

What is the Challenger Deep?

The deepest place on Earth Signup and view all the answers

What process causes older portions of the ocean floor to subduct into the mantle?

Subduction Signup and view all the answers

What evidence supports the theory of sea-floor spreading?

Alternating magnetic stripes in ocean-floor rock Signup and view all the answers