What defines a hazard tree?

A hazard tree is defined as a tree that poses a potential risk for injury or damage that exceeds a certain threshold. This definition takes into account various factors, such as the tree's condition, location, and surrounding environment. A tree may be considered hazardous if it has structural issues, disease, or other defects that could lead to failure, especially in contexts where it could impact people, property, or infrastructure.

By focusing on the potential consequences of a tree's condition rather than just its physical characteristics, the definition of a hazard tree emphasizes the importance of assessing risk. This assessment process involves examining how likely it is for a tree to fail and cause injury or damage, which could involve a thorough evaluation of the tree's structure, health, and its proximity to targets.

In contrast, options that describe the tree as healthy, properly pruned, or lacking visible defects do not capture the essence of what makes a tree hazardous. These attributes may suggest that the tree is in good condition, yet they do not account for the potential risk it poses based on its location and the possible consequences of its failure. The key aspect of a hazard tree is the acknowledgment of risk, which is effectively communicated in the correct answer.