It is accepted by most scientists that there was a supercontinent called Pangaea.
"Pengea" was a hypothetical supercontinent proposed by scientists that existed around 335-175 million years ago. It is believed to have formed before the breakup of Pangaea, and it was located in the Southern Hemisphere. Pengea's existence helps explain certain geological features found on different continents today.
it affected it because the land got separated
well, Pangaea doen't really have a meaning it was a country but that country has split by an earthquake and now we are living in part of that country.