Question

which risk factor can be controlled to prevent an injury?
individual genetics
actions of negligence
equipment failure
effects from natural disasters

Explanation:

Individual genetics is inherent and cannot be changed. Equipment failure often has underlying causes like poor maintenance, but it's not directly a controllable risk factor in the sense of personal behavior. Effects from natural disasters are external and beyond individual control. However, actions of negligence are within an individual's control. One can choose to be more careful and avoid negligent behavior to prevent injuries.

Answer:

actions of negligence