What key information is typically included in risk assessment ratings?

The correct answer highlights the fundamental aspects of risk assessment ratings, which typically include the likelihood of failure and potential consequence ratings. These elements are critical in evaluating tree risk, as they provide a structured way to assess both the probability that a tree will fail and the potential impact such failure could have on people, property, and the environment.

The likelihood of failure assesses how probable it is that a tree will actually fail, based on factors such as species characteristics, environmental conditions, and structural integrity. Meanwhile, the potential consequence ratings evaluate the severity of the outcomes if failure does occur, which might involve considerations such as the proximity of targets (like people or buildings) and the value of those targets.

In contrast, other options listed do not encapsulate the comprehensive nature of risk assessments. For instance, tree height and color do not correlate with the risk of failure or potential consequences. Similarly, only knowing the age of the tree or its geographical location provides limited context for assessing risk; while they can be relevant factors, they do not encompass the necessary holistic evaluation needed in a risk assessment. Thus, understanding the likelihood of failure along with consequence ratings is essential for effectively managing tree risk.