How were the fossil symbols and mountain belts in deciding where to move the continents

In 1912, a German astronomer named Alfred Wegener proposed that the continents around the Indian Ocean were physically joined and moved apart. This theory explained fossil connection and the existence of glacial deposits. Fossils also found in different continents helped scientists and geologists determine the connection between continents. Mountain belts marked the boundaries of moving plates, which showed in which direction the different continents drifted. Fossils and mountain belts were helpful in deciding where to move the continents since the geologists could see how they were placed together.

the correct answer would be true friction causes the faults to slip or collide