Please Help me $$$$?

Question

6. What proposed explanations overcame the problem of how the continents moved?

7. How does the presence of ocean ridges and trenches support the theory that the continentals move?

8. How does sea floor spreading support the theory that continentals move?

9. How was sea floor spreading tested as a hypothesis?

10. How does the fossil record support the theory of plate tectonics?

11. How does the distribution and pattern of earthquakes support the theory?

12. In your own words, state the theory of plate tectonics.

13. How does the development of the theory of plate tectonics illustrate the changing nature of scientific knowledge?

14. How was the scientific method used to establish the theory of plate tectonics?

15. In your mind, what is a theory? Can theories change? Who makes theories? What has to happen to a scientific explanation for it to become a theory?

Answer 1

 6.) seafloor spreading

8.) provides the how question. continets are passengers that ride with ocean crust as it slowly moves away from ocean ridges.

9.) magnetic reversals create magnetic banding in the rocks on the seafloor.

12.) states that earths crust and upper mantle are broken into huge slabs called plates

i also need to know #'s 13, 14, and 15