Question

identical rock types, identical fossils, and very similar mountain ranges are found on different continents separated by a wide ocean. which of these best explains these observations?
a organisms traveled between these continents on land bridges.
b the same forces erode mountains in different locations.
c these continents were joined together at some point in the past.
d some rock types are very common and are found everywhere.

Explanation:

This observation is a key piece of evidence for continental drift theory. Identical rocks, fossils, and mountain chains across ocean-separated continents cannot be explained by land bridges, random erosion, or common rock types—they make sense only if the continents were once a single connected landmass that later split apart.

Answer:

C. These continents were joined together at in the past.