sunspots earthquakes wave patterns cloud formations
I gave my students this multiple choice question: In 1785, James Hutton, stated that evidence of past occurrences can be used to explain events which happen today. Which could most likely be used to explain an event in the geologic past?

Only one answer is correct among these 4 choices:
- sunspots
- earthquakes
- wave patterns
- cloud formations

Could you tell me which one is correct?

earthquakes