Author Question: According to the theory of seafloor spreading, molten rock is rising up along A) the mid-ocean ... (Read 117 times)

abarnes · **on:** Jul 29, 2018

According to the theory of seafloor spreading, molten rock is rising up along

A) the mid-ocean ridges.
B) trenches that border continental margins.
C) islands surrounding the Pacific volcanic rim.
D) areas of sinking seafloor.

Question 2

Describe the theory of continental drift.

What will be an ideal response?

jjorrostieta · **Reply #1 on:** Jul 29, 2018

Answer to Question 1

Answer: A

Answer to Question 2

Answer: Continental drift proposed that continental land was not staticthe continents moved. The theory was well supported by the jig-saw fit of continental land masses at their margins, and by data in paleo-climatology and paleontology. Although the evidence was quite remarkable, a suitable driving mechanism to produce such crustal movement was lacking.