Respuesta :
The next step for this historian is to make an educated guess about what happened.
How do historians study history?
Considering history is part of science historians use the steps from the scientific method to study history.
What are the steps of the scientific method?
The steps of this method are:
- Make an observation.
- Ask a question.
- Make a hypothesis or educated guess.
- Test the hypothesis.
- Analyze data.
- Conclude.
What should this historian do?
This historian has already made an observation (a civilization disappeared and there is not a clear cause) and he has asked the question (why did the civilization disappear). Therefore, the next step is to create a hypothesis or an educated guess about why this civilization disappeared.
Learn more about scientific method in: https://brainly.com/question/7508826