Question

when were earths landmasses first recognizable as the continents we know today?
○ 10 million years ago
○ 135 million years ago
○ 180 million years ago
○ 300 million years ago

Explanation:

Continental drift led to the breakup of the supercontinent Pangaea. By around 10 million years ago, the landmasses had moved into positions that match the continents we recognize today. Earlier timestamps correspond to earlier stages of supercontinent breakup (180-135 million years ago is when Pangaea began splitting, 300 million years ago is when Pangaea formed).

Answer:

10 million years ago