Question

how do fluorescent light bulbs produce light? radioactivity heating a gas sparking a fire

Explanation:

Fluorescent light bulbs work by passing an electric current through a gas (usually mercury vapor) in the tube. This excites the gas atoms, causing them to emit ultraviolet light, which then interacts with the phosphor coating on the inside of the bulb to produce visible light. The process involves heating the gas (through electrical excitation) to make it emit radiation. Radioactivity is not involved in typical fluorescent bulbs, and sparking a fire is irrelevant. So the correct option is the one about heating a gas.

Answer:

heating a gas