True or False: A "DANGER" label indicating "May be fatal if swallowed" is less serious than a "DANGER"-corrosive label.

A "DANGER" label indicating "May be fatal if swallowed" signifies a very serious level of risk associated with ingestion of the substance, which implies a potentially lethal outcome. This communication is intended to alert handlers and users to the extreme consequences of mishandling the product. In contrast, a "DANGER"-corrosive label indicates that the substance can cause severe damage to living tissue or materials upon contact, which is also a critical hazard.

Both labels indicate serious risks, but the implications of ingesting a substance that may be fatal carry a specific urgency for safe handling and immediate attention in case of exposure. The misuse of either substance can lead to severe health consequences, but the specific hazard presented by the fatal ingestion provides a clear, direct life-threatening risk, thus making the statement that one is less serious than the other inaccurate. Each label communicates an important and grave hazard that should not be underestimated.