plate tectonics Crossword

Who is the creator of the idea continental drift?
One giant super continent
the formation of new areas of oceanic crust
plate boundaries that collide
plate boundaries that pull away from each other
plate boundaries that slide past each other
hot fluid or semi fluid material below or within the earth's crust
Who discovered seafloor spreading
the upper layer of the earth's mantle that has convection currents
the crust is the outermost solid shell of earth
the process of eroding or being eroded by wind, water, or other natural agents
the gradual movement of the continents across the earth's surface
a scientific theory describing the large-scale motion of seven large plates
the breaking down of rocks, soil, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere
he rigid outer part of the earth, consisting of the crust and upper mantle