When using the scientific method, scientific theories must be ...

[jenna1]

When using the scientific method, scientific theories must be ____.
 A) tested and consistently supported by observations or experiments
  B) verified by the leading authorities in the field
  C) consistent with previous, universally accepted scientific concepts
  D) consistent with the fact that the ocean is of great age

Question 2

Compare the thickness of pelagic sediments in the Pacific Ocean to that of the Atlantic. What reasons account for the differences? Using information from Chapter 4, would the type of margin have an effect? Why or why not?

[briseldagonzales]

Answer to Question 1

A

Answer to Question 2

 The sediments in the Atlantic Ocean are thicker than those found in the Pacific. The Atlantic is approximately 1 kilometer thick and the Pacific is less than 0.5 kilometers thick.
 There are a few reasons as to why sediments are thicker in the Atlantic. First, the Atlantic is fed by more rivers than the Pacific. This results is that more terrigenous sediment reaches the continental shelf. Also, the Atlantic has a smaller area for those sediments to cover. Lastly, the Pacific Ocean has many trenches and topography that traps sediments moving towards the basin.
 The type of margin can have an effect. Active margins, such as the Pacific, are associated with more geological activity and subsequently more bathymetric features. These features have an effect on how sediments get distributed.
 The Atlantic's passive margin is relatively flat. There are not as many bathymetric features to trap sediments.

[jenna1]

Thank you!

[briseldagonzales]

Always glad to help...