Imagine that an impact occurred on the continental plate millions and millions of years ago, leaving behind an impact crater near the right side of the base of the volcano. Why would there be little evidence of this impact crater found today?

A. The wind that comes down the side of a mountain is much faster than other winds, so the erosion on the side of a volcano would erase the traces of a crater very quickly.

B. The continental crust is constantly recycled through subduction, so the crater would’ve been lost long ago.

C. Heavy bombardment left so many craters that Earth was “saturated,” so that the craters overlapped each other and you can’t see the edges of any of them any more.

D. Volcanic eruptions over the years would have damaged or destroyed all traces of the crater.