Question

alfred wegener could not prove what force moved the plates to support his theory of continental drift. most of his evidence was due to his observations of the surface of the earth. the modern theory of plate tectonics, by henry hess however, explained that the continents were not just drifting but moving. which part of the crust was studied that provided evidence for the plate tectonics theory? select one: a. conduction patterns b. continents c. mantle d. oceans

Explanation:

Alfred Wegener's continental drift theory relied on continental surface observations but lacked a mechanism for movement. Henry Hess's plate tectonics evidence came from studying ocean floors, including seafloor spreading, which explained the driving force for plate movement. The other options are incorrect: conduction patterns are not the key evidence source, continents were Wegener's focus, and the mantle was inferred as the driver but not the directly studied crustal part for this evidence.

Answer:

d. Oceans