Harry Hess of Princeton proposed the theory of plate

Harry Hess of Princeton proposed the theory of plate

Harry Hess of Princeton proposed the theory of plate tectonics.  Hess had three main hypotheses that together formed a unified theory of how the Earth works: 1) the Earth is broken into a series of lithospheric plates; 2) the plates are in motion relative to each other, and 3) the crust is formed at ocean ridges and destroyed in subduction zones.   Vine-Mattews-Morely came up with the hypothesis that seafloor spreading acts like a magnetic tape recorder (watch the video from Fred Vine).
In everyday use, theory implies something untested (I have a theory or an idea), and having only a small degree of evidence in its favor.  However, in science 
1) A hypothesis is a tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation. It is “an idea.”
2) A theory is a set of statements or principles devised to explain a group of facts or phenomena; theories have been repeatedly tested or is widely accepted and can be used to make predictions about natural phenomena. 
Data are observations.  In this discussion we want you to list 4 types of geologic data used to test the hypotheses that  “the Earth is broken into a series of lithospheric plates.”  What data/observations support this?Hint: for some or most of the data, think of large scale topographic features or global geologic trends discussed in the lecture.  Note:  You can only use one type of data set or observation from Continental Drift.
I attached a PDF file of the plate tectonis. Plese use information from that PDF. Thank you so much!

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