I’d have to say geology.
I think the story rocks can tell is really interesting. It is fun unraveling all the clues to work out what has happened to them in the past and how they came to be!
I keep changing mine :). At first I was interested mainly in physics, but as I spent more time as a researcher I realised other fields were important. I like learning about the chemistry of the atmosphere, which isn’t something I know a lot about! Even though I don’t have lectures or exams, as a scientist I never stop learning
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