Question

Question 9 Multiple Choice Worth 3 points) With the discovery of magnetic reversals, there was evidence that the sea floor could create new continental crust. the seafloor contains alternate bands of minerals. only seafloor (oceanic) crust was capable of drifting. the sea floor was younger away from spreading centers. the seafloor contained a mechanism for plate tectonics.

Answer 1

The discovery of magnetic reversals on the sea floor implies that it could create new continental crust. The knowledge of the spreading rate can be used to give the historical record of the Earth's magnetic field.

Step-by-step explanation:

The discovery of magnetic reversals provided evidence that the sea floor contains alternate bands of minerals.

This implies that the sea floor could create new continental crust. Additionally, the knowledge of the spreading rate of the sea floor can be used to give the historical record of the Earth's magnetic field.

When volcanic activity at the mid-Atlantic ridge extrudes material to fill the gap between separating tectonic plates, the magnetization of rocks reverses in a coordinated manner with distance from the ridge, reflecting changes in the Earth's magnetic field over time.

Answer 2

the sea floor contained a mechanism for plate techtonics

Step-by-step explanation:

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