Question

What process is illustrated by the area labeled G and figure 9–1?

A. Seafloor spreading

B. continental volcanism

C. Rifting

D. subduction

Strips of alternating magnetic polarities is found in rocks in the ocean basins

A. Conflict with the theory of plate tectonics ____

B. Provide evidence that Earths magnetic field bad never reversed polarity

C. Indicate changes in Earths gravitation field

D. Provide evidence for sea floor spreading



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Answer 1

1) D. subduction

2) D. provide evidence for seafloor spreading

I took it too lol

Answer 2

Seafloor spreading is the process of splitting apart of tectonic plate

The process illustrated by the area labeled G in figure 9–1 is subduction

D. Subduction

Strips of alternating magnetic polarities is found in rocks in the ocean basins;

D. Provide evidence for sea floor spreading

Reason:

• Subduction;

Subduction is a process in geology that occur where two plates converge

(usually ocean ocean plate convergence or oceanic continental

convergence) such that lithosphere of one plate is subducted or dives

beneath a less dense plate into the mantle, where it is recycled

• Seafloor spreading;

The observations of the strips located on the ocean floor are as follows;

• The stripes of opposite polarities alternates

• The stripes on either sides of the mid-ocean ridges are a reflection of each other

• There is an abrupt end of the stripes at continental edges

The above observation are an evidence of seafloor spreading

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