Which type of evidence establishes a fact on its face when it is uncontradicted?

The correct answer is prima facie evidence, as it refers to evidence that is sufficient to establish a fact or raise a presumption unless contradicted by other evidence. In legal contexts, when prima facie evidence is presented and remains uncontradicted, it is accepted as true and establishes the fact in question. This type of evidence effectively sets a foundation in a legal case, often allowing a matter to be decided without the need for further evidence, as long as it is not challenged or disputed.

Understanding the context of the other options provides clarity; affidavits and testimonies can serve as forms of evidence, but they often require additional support or corroboration to solidify their claims. Circumstantial evidence, while useful in forming conclusions, does not directly establish a fact on its face and often requires inference to connect the dots. In contrast, prima facie evidence stands alone as compelling until countered, making it a fundamental concept in legal proceedings.