Surface craters refers to a short-term environmental change would a very small asteroid or comet impact on Earth most likely cause.
B, the lowest layer is a dinosaur fossil, therefore the mammal fossil was after
<span>Defines cell shape= </span><span>cytoskeleton
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Hey there!
The answer is B, Pangaea. This was the name for the large continent that supposedly existed before we had all of our separate continents today (all of which were part of Pangaea).
Hope this helps
