Continental Drift Flashcards

1
Q

What is the hypothesis of continental drift?

A

Prove that continents had moved over time.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Who is credited for proposing continental drift?

A

Alfred Wegener

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What evidence was first collected to support the hypothesis of continental drift?

A
Matching edges
Matching rocks
Matching Climates
Matching mountains
Matching fossils
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What was the main weakness of the continental drift hypothesis?

A

Wegener couldn’t explain HOW continental drift worked.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the theory of plate tectonics?

A

Lithosphere is broken into 7-8 large plates which float on the partly molten asthenosphere.
Plates pull apart, slide, and collide at their boundaries, causing tectonics.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Who first proposed the theory of plate tectonics?

A

Harry Hess

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What was the new mechanism to explain plate tectonics?

A

Seafloor spreading

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Volcanic mountains were pushing the continents apart as they erupted.

A

Seafloor spreading

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The same continents also shared similar plant and animal fossils from the same age rocks.

A

Glossopteris Fern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly