Direct Democracy just means that your vote isn't represented by someone else, which would be indirect democracy (like how we have representatives that vote for us in congress). Since you are voting for something in the group "directly" that would be an example of direct democracy.
Answer:
testing
Explanation:
According to my research on scientific terminology, I can say that based on the information provided within the question it is a body of scientific work that has undergone rigorous testing. Without having gone testing they could not establish facts, and without facts it would not be a theory instead it would be a hypothesis.
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