Question

wegeners continental drift theory was originally not accepted because it was missing
a. how plates move
b. where fossils were found
c. evidence of glaciers
d. what plates are made of

Explanation:

Wegener's Continental Drift Theory lacked a mechanism for how continents could move (the plate - movement mechanism was later provided by plate tectonics). Fossils (B) and glacier evidence (C) were actually used by Wegener as evidence for continental drift. The composition of plates (D) was not the key missing element.

Answer:

A. how plates move