What typically happens when a comet is ignited?

When a comet is ignited, it typically leaves a trail of sparks as it rises. This phenomenon occurs because comets in firework displays are designed to create a visually appealing effect, resembling a comet soaring through the sky. As the comet is ignited, it emits burning particles and sparks that follow the main body of the effect, creating that characteristic tail. This visual representation is important in firework shows, as it contributes to the aesthetic experience and overall impact of the display.

Other options reflect scenarios that don't accurately describe the behavior of a comet in fireworks. For instance, the idea that a comet floats gently to the ground would imply a lack of ignition and propulsion, which contradicts the purpose of a comet effect. Similarly, producing a low sound without sparks does not align with the explosive nature of aerial fireworks, which are designed to create dynamic visual and auditory impacts. Lastly, the notion of collapsing before ignition does not fit with how comets function in a display context, as they are engineered to ignite and ascend effectively.