Author Question: The acceptance of plate tectonics after the initial rejection of continental drift has been ... (Read 236 times)

berenicecastro · **on:** Jul 16, 2018

The acceptance of plate tectonics after the initial rejection of continental drift has been described as a scientific revolution. Explain why plate tectonics was so revolutionary and what tools were used to bring it about.

What will be an ideal response?

Question 2

Match the tectonic boundary with the effect on the crust.

A) Crust is being created
B) Crust is being conserved
C) Crust is being destroyed

1) Convergent boundary
2) Divergent boundary
3) Transform boundary

Smiles0805 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

Answer: Scientists initially held onto the belief that the continents and ocean basins were fixed objects, both of which dated back to the earliest days of the Earth. When continental drift was proposed, which challenged this belief, scientists had difficulty accepting it because the evidence was not as clear outside the southern continents. After World War II, modern tools like sonar, ocean drilling, and magnetometers were used to gather evidence about the age and bathymetry of the seafloor. This evidence (seafloor spreading and paleomagnetism) was used to support continental drift and develop the modern theory of plate tectonics.

Answer to Question 2

Answers: 1) C 2) A 3) B