Warning signals are indicators that suggest potential danger or the need for caution. They can be visual, auditory, or sensory cues that alert individuals to possible risks in their environment. For example, a flashing red light or a loud siren can signal an emergency, prompting people to take immediate action. In various contexts, warning signals serve to protect individuals and communities. In nature, animals may display warning colors or sounds to deter predators. In technology, warning lights on devices like cars or computers indicate malfunctions or hazards, helping users respond appropriately to avoid accidents or damage.