The tester may have proofread the correct answers carefully, but not the incorrect ones. Terminology , the old standby. A personal favorite of mine. If something violates conventional wisdom, or popular misconception, or what you think you already know, it could easily turn up on an exam. Most geologists are employed in looking for gold, oil, or diamonds.
Geologists frequently dig to get at the rocks.
A couple of suggestions for taking the test Stick with your first impression. This point gets a lot of debate, but unless you have serious reason to change, your first impression is likely to be correct. Second guessers start reading things into the questions that aren't there. Read the questions in plain English and don't look for hidden meanings. Do look for legitimate subtle differences between similar answers, but if one answer seems to leap out, go with it.