Plate Tectonic Theory Is Based on ____

question 12

Multiple Choice

Plate tectonic theory is based on ____.  

• A) a model in which cool material in the earth's crust rises and spreads laterally beneath the crustal plates
• B) the idea that Earth's crust is fragmented into rigid crusts that are sinking slowly beneath crustal plates
• C) the idea that sedimentary rock formation causes continents to drift apart slowly on their crustal plates
• D) observations of ridges on the sea floor, where magma pushes the surface upwards, thus moving and pushing older rock down into a ridge at the opposite edge of the sea floor
• E) evidence that severe disturbances in Earth's crust shaped the continents in a single large event