Question

how did wegener explain why fossils of land animals were found on continents that are across oceans from one another?
○ animals evolved separately on each continent.
○ land bridges existed between the continents.
○ animals swam across the ocean to new continents.
○ continents were once one landmass and have drifted apart.

Explanation:

Wegener proposed the continental drift theory. He explained that continents were once a single landmass (Pangaea) and have since drifted apart. This explains why similar land - animal fossils are found on continents separated by oceans. The other options are incorrect: evolving separately wouldn't lead to similar fossils, land bridges were not his explanation, and land animals can't swim across oceans to colonize new continents.

Answer:

D. Continents were once one landmass and have drifted apart.