Which of the following statements is true concerning UXO?

The statement regarding UXO that is true is that UXO may remain dangerous for decades. Unexploded ordnance refers to munitions that did not detonate when they were supposed to, and they can pose serious safety hazards long after conflicts have ended. The core issue is that these munitions can retain their explosive potential for many years, sometimes even decades, due to their construction and the environments in which they are found. This persistence makes UXO a continual risk to public safety and the environment, necessitating careful management and clearance efforts.

In contrast, the idea that UXO is typically found only in urban areas is misleading, as they can be found in a wide variety of environments, including rural and remote locations. Most UXO cannot be easily identified by sight; many are camouflaged or buried, and even if they are visible, their hazardous nature may not be readily apparent. Lastly, the suggestion that all UXOs are completely harmless is incorrect, as they can be extremely dangerous and should always be treated with caution. Thus, the statement about UXO remaining dangerous for decades accurately reflects the long-term risks associated with these devices.