Which of the following describes a physical characteristic of evidence?

The answer is size, as it is a definite physical characteristic of evidence that can be quantified and measured. Physical characteristics refer to attributes that can be observed and assessed without altering the evidence.

Size plays an important role in investigations because it can help establish the context of the evidence in relation to the scene of the incident or its relevance to a particular hypothesis being investigated. For example, knowing the size of an object can contribute to understanding how it may have interacted with other items or the environment, thereby helping in the reconstruction of events.

Color and location, while useful descriptors, can be more subjective or contextual and may not provide an inherent physical characteristic of the evidence itself. Owner is a relational attribute rather than a physical characteristic and doesn't describe the evidence's inherent properties directly. Thus, the focus on size encapsulates a fundamental aspect of evidence evaluation in investigations.