continental drift - a hypothesis by Alfred Wegener that suggests that all present continents were once one supercontinent and then began to break apart and "drift" to their present positions.
(a hypothesis by Alfred Wegener; suggests; that all present continents were once one supercontinent and then began to break apart and "drift" to their present positions) Context(a hypothesis by Alfred Wegener suggests,List([20, 64))):(all present continents; were; T:once; one supercontinent)
a hypothesis by Alfred Wegener suggests,List([20, 64))
a hypothesis by Alfred Wegener all present continents
suggests were
that all present continents were once one supercontinent and then began to break apart and "drift" to their present positions
T:once one supercontinent