Question

In the 1960s the theory of plate tectonics was further developed through advancement and the study of

Answer 1

Answer:

D. Oceanic Trenches

Explanation:

I have taken the test.

Answer 2

History of plate tectonics. Plate tectonic theory had its beginnings in 1915 when Alfred Wegener proposed his theory of "continental drift." ... Wegener's ideas were very controversial because he didn't have an explanation for why the continents moved, just that there was observational evidence that they had.