Answer:
B. Scientific Method.
Explanation:
The scientific method is a way of answering questions, or rather experimenting to build a hypothesis. It had the following steps, observation, forming a question, then hypothesis, a prediction based on the hypothesis, testing the prediction, and using the results of the test to adjust the hypothesis if needed, or to make a new one with new predictions.
A the reason why dictators most power in europe
Answer:
D. Reservoirs
Explanation:
A reservoir is, most commonly, an enlarged natural or artificial lake, pond, or impoundment created using a dam or lock to store water.
The historians could be wrong without proper proof to back up their so-called "facts". Therefore, they would need to study and know what they're talking about, before presenting their statements as facts.