Question

Which evidence originally supported Hess's idea of seafloor spreading in 1968?

Younger rocks are closer to mid-ocean ridges.
The destruction of crust occurs at deep-sea trenches.
Oceanic rocks are pillow-shaped when formed.
Rocks across the ocean floor have alternating magnetic stripes.(this is the not the right answer, just took test)

Answer 1

Different types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. This evidence made scientists take a second look at Wegener's hypothesis of continental drift.

Step-by-step explanation:

Answer 2

Oceanic rocks are pillow- shaped when formed.