Question

when were earth’s 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:

To determine when Earth’s landmasses first resembled today’s continents, we refer to geological knowledge. The breakup of the supercontinent Pangaea led to the formation of recognizable modern continents. Around 135 million years ago, the landmasses had evolved to a state where they were identifiable as the continents we know now. 10 million years ago is too recent, 180 million years ago is earlier in the breakup process, and 300 million years ago is when Pangaea was more intact.

Answer:

B. 135 million years ago (Note: Assuming the options are labeled A, B, C, D with A: 10 million years ago, B: 135 million years ago, C: 180 million years ago, D: 300 million years ago)