What is a potential hazard if the flare cartridges are exposed to inappropriate environments?

Exposure of flare cartridges to inappropriate environments can indeed lead to a risk of accidental discharge. Flare cartridges are designed to perform under specific conditions, and any deviation from these conditions—such as exposure to moisture, extreme temperatures, or physical damage—can compromise their integrity and functionality.

When flare cartridges are subjected to unsuitable environments, they may degrade or become unstable. This instability can result in unintended ignition or discharge, which poses a significant safety risk to personnel and nearby equipment. Ensuring that flare cartridges are stored and handled within their specified environmental parameters is crucial for preventing such hazards.

The other options do not accurately capture the primary concern associated with inappropriate environmental exposure. For instance, increased range and decreased visibility relate to the performance qualities of flares, while an improper ignition sequence would imply a failure in the operational mechanism rather than a direct hazard stemming from environmental exposure. Therefore, the potential for accidental discharge stands out as a major risk associated with improper handling and storage.