Impact craters caused by meteorites smashing into Earth have been found all around the globe, but they have been foun...

bingolawyer on December 3, 2019

I'm not sure, but D is if you were telling someone to hold all factors constant. They talk about higher density of crates in certain areas. Ok, great, so from there you want to assume that the spread is to some degree equal so that you can make the assumption in the last sentence.

Emil-Kunkin on August 19 at 02:26PM

The argument holds that craters are more common in stable areas because those areas have fewer destructive forces that would have destroyed the evidence of impacts in less stable regions. This seems pretty strong, but it ignores the possibility that meteor impacts might actually not be evenly distributed across the globe. If, say, meteors are more likely to hit near the poles, which coincidentally happen to be unusually stable, this would undermine the argument. D fixes this issue.