Two scientists, Fred and Liz, were working at a dig site to find fossils. They both had just gotten their degrees in Geology and were very excited to start work.
Fred had suspected that Liz wasn't who she said she was, mostly because she messed up terms and almost seemed to lack some basic skills in excavation and classification of fossils. One day Liz was looking at a well-preserved fossil when Fred walked in. He decided to test her and asked, "What kind of rock is that preserved in?" She answered back, "Igneous of course!" He then knew that she didn't have a degree in Geology and told the boss who, of course, fired her. What answer should she have given?