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:

Alfred Wegener proposed the continental drift theory. He argued that all continents were once joined in a single supercontinent called Pangaea. Land animals lived on this connected landmass, and as the continents slowly drifted apart over millions of years, the fossils of these animals became separated across the now-ocean-separated continents. The other options do not align with his core explanation.

Answer:

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