Question

which observation supported wegeners theory of continental drift?
different continents had different rock types.
identical fossils were found on continents that were far apart.
the earths rotation could provide enough force to move the continents apart.
each continent had mountain ranges.

Explanation:

To determine which observation supports Wegener’s continental drift theory, we analyze each option:

• "Different continents had different rock types" does not support the idea of continents once being connected, so it's incorrect.
• "Identical fossils were found on continents that were far apart" suggests those continents were once joined (as organisms couldn't travel across vast oceans), which supports continental drift.
• "The earth’s rotation could provide enough force to move the continents apart" was a flawed argument Wegener used, and the force from Earth’s rotation is not sufficient, so this is incorrect.
• "Each continent had mountain ranges" is a common feature and does not support continental drift.

Answer:

B. Identical fossils were found on continents that were far apart.