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During the eighteenth and nineteenth centuries, the "contracting Earth model" hypothesis attempted to explain the origins of Earth's physical features by assuming that the Earth has been slowly cooling and contracting since its formation. A few scientists still supported the contracting Earth model when Alfred Wegener proposed his continental drift hypothesis in the early twentieth century. While both hypotheses were able to explain the origins of some of the Earth's physical features, they both had limitations as well.

Determine which of the two hypotheses would be able to explain...

Question 27 (1 point)

...the presence of mountain belts.

Question 27 options:

Contracting Earth model only

Continental drift hypothesis only

Both the contracting earth model and continental drift hypothesis

Neither the contracting earth model nor the continental drift hypothesis

Save

During the eighteenth and nineteenth centuries, the "contracting Earth model" hypothesis attempted to explain the origins of Earth's physical features by assuming that the Earth has been slowly cooling and contracting since its formation. A few scientists still supported the contracting Earth model when Alfred Wegener proposed his continental drift hypothesis in the early twentieth century. While both hypotheses were able to explain the origins of some of the Earth's physical features, they both had limitations as well.

Determine which of the two hypotheses would be able to explain...

Question 28 (1 point)

...the match of mountain belts across continents.

Question 28 options:

Contracting Earth model only

Continental drift hypothesis only

Both the contracting earth model and continental drift hypothesis

Neither the contracting earth model nor the continental drift hypothesis

Save

During the eighteenth and nineteenth centuries, the "contracting Earth model" hypothesis attempted to explain the origins of Earth's physical features by assuming that the Earth has been slowly cooling and contracting since its formation. A few scientists still supported the contracting Earth model when Alfred Wegener proposed his continental drift hypothesis in the early twentieth century. While both hypotheses were able to explain the origins of some of the Earth's physical features, they both had limitations as well.

Determine which of the two hypotheses would be able to explain...

Question 29 (1 point)

...the fit of the continents.

Question 29 options:

Contracting Earth model only

Continental drift hypothesis only

Both the contracting earth model and continental drift hypothesis

Neither the contracting earth model nor the continental drift hypothesis

Save

During the eighteenth and nineteenth centuries, the "contracting Earth model" hypothesis attempted to explain the origins of Earth's physical features by assuming that the Earth has been slowly cooling and contracting since its formation. A few scientists still supported the contracting Earth model when Alfred Wegener proposed his continental drift hypothesis in the early twentieth century. While both hypotheses were able to explain the origins of some of the Earth's physical features, they both had limitations as well.

Determine which of the two hypotheses would be able to explain...

Question 30 (1 point)

...paleoclimate data.

Question 30 options:

Contracting Earth model only

Continental drift hypothesis only

Both the contracting earth model and continental drift hypothesis

Neither the contracting earth model nor the continental drift hypothesis

Save

During the eighteenth and nineteenth centuries, the "contracting Earth model" hypothesis attempted to explain the origins of Earth's physical features by assuming that the Earth has been slowly cooling and contracting since its formation. A few scientists still supported the contracting Earth model when Alfred Wegener proposed his continental drift hypothesis in the early twentieth century. While both hypotheses were able to explain the origins of some of the Earth's physical features, they both had limitations as well.

Determine which of the two hypotheses would be able to explain...

Question 31 (1 point)

...the location of volcanoes and earthquakes.

Question 31 options:

Contracting Earth model only

Continental drift hypothesis only

Both the contracting earth model and continental drift hypothesis

Neither the contracting earth model nor the continental drift hypothesis

Save

During the eighteenth and nineteenth centuries, the "contracting Earth model" hypothesis attempted to explain the origins of Earth's physical features by assuming that the Earth has been slowly cooling and contracting since its formation. A few scientists still supported the contracting Earth model when Alfred Wegener proposed his continental drift hypothesis in the early twentieth century. While both hypotheses were able to explain the origins of some of the Earth's physical features, they both had limitations as well.

Determine which of the two hypotheses would be able to explain...

Question 32 (1 point)

...why the continents move.

Question 32 options:

Contracting Earth model only

Continental drift hypothesis only

Both the contracting earth model and continental drift hypothesis

Neither the contracting earth model nor the continental drift hypothesis

Save

Question 33 (1 point)

Where are the youngest rocks found on the seafloor?

Question 33 options:

Trenches

Mid-ocean ridges

Along coastlines

Save

Question 34 (1 point)

At what location is heat flow the greatest?

Question 34 options:

Near oceanic ridges.

New oceanic trenches.

Near transform boundaries.

Save

Question 35 (1 point)

What happens to the age of the seafloor rocks moving away from a mid-ocean ridge?

Question 35 options:

The rocks get younger.

The rocks get older.

The rock ages do not change.

Save

A)

Contracting Earth model only

B)

Continental drift hypothesis only

C)

Both the contracting earth model and continental drift hypothesis

D)

Neither the contracting earth model nor the continental drift hypothesis

Explanation / Answer

Question 27
Answer: C) Both the contracting earth model and continental drift hypothesis
The presence of mountain belts both the contracting earth model and continental drift hypothesis.
Mountains can be formed by the collision of tectonic plates and we can contract them.
Question 28
Answer: A) Contracting Earth model only
Question 29
Answer: C) Both the contracting earth model and continental drift hypothesis
Question 30
Answer: A) Contracting Earth model only

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