What first caused people to consider that the continents were once one large landmass?

glacier evidence in warmer countries
continents looked like they fit together
studying the valleys of the ocean floor
similar fossils were found on many continents

Respuesta :

Answer:

Continents looked like they fit together. Which continents contain fossils of Mesosaurus, an extinct reptile, in similar regions of Pangaea?

Answer:

B

Explanation: