From 350mya to 200mya, Antarctica was part of the supercontinent Gondwana, drifting southward. From 200mya to the present day, it continued drifting southwards, eventually reaching its current polar position.
6 billion years ago No, the Earth is only 4.6 billion years old. Amphibians appeared on Earth during the late Devonian period in the Paleozoic Era about 365 million years ago. Hope that helps!
The Precambrian Time