Physics

Elizabeth Wise

8 February, 18:55

Use the drop-down menus to complete the sentences describing the important ideas in Hess's theory.

Hess expanded on Wegener's theory of (blank).

possible answers: Pangaea landmass, continental drift, or conveyor belt.

Hess proposed the idea that (blank) are places where crust is created.

possibles answers: mid-ocean ridges, continents, or deep-ocean trenches