A Sea Change in the Earth Science Paradigm

What was the primary reason for the initial rejection of Wegener's continental drift hypothesis?

• Lack of alternative explanations

• Old-fashioned field-based evidence

• Incorrect mechanisms for continental movement

• All of the above

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Analyzing

Who was the geology professor at the University of Chicago that criticized Wegener's hypothesis?

• Bailey Willis

• Thomas Chamberlin

• Harry Hess

• Robert Deitz

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Understanding

What did Harry Hess discover on the ocean floor during WWII?

• Mid-Ocean Ridge

• Guyots

• Ocean trenches

• Volcanic islands

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Understanding

The term 'sea-floor spreading' was coined by which geologist?

• Alfred Wegener

• Harry Hess

• Robert Deitz

• Felix Vening Meinesz

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Understanding

The scientific community initially rejected Wegener's hypothesis because it lacked a plausible _______.

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Analyzing

Hess's paper 'History of Ocean Basins' was described as an essay in _______.

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Evaluating

The Mid-Atlantic Ridge is part of the largest mountain range on Earth, known as the _______ Ridge system.

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Understanding

Wegener's theory of continental drift was completely disbelieved when he published it.

• The article doesn't say.

• True
• False

Earth's gravity field is completely uniform.

• True

• False

• The article doesn't say.

A fathometer measures the _____ of the ocean.