plate tectonics Flashcards
1
Q
continental drift theory
A
suggest that the continents were once united into a supercontinent called “pangae”, greek word for “all lands”
2
Q
proposed the continental theory in 1912
A
alfred lothar wegener, a meteorologist and astronomer (1880-1930)
3
Q
seafloor spreading
A
refers to the new creation of new oceanic crust at mid-ocean ridges due to separation of tectonic plates
4
Q
convection current
A
refers to the heat-driven cycles that occur in the air, ocean, and mantle.
