xkcd #3221: Landscape Features
Title text:
'Well, there's speculation that it's due to a mantle hotspot.' --a geologist who's trying to cover up the fact that they didn't hear your question
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3221/
Well, to my exceedingly untrained eye... this all seems to be in order. Great work here. You really made an open and shut case out of it. I guess we're all leaving the office early today, first round's on me!