Question

the colors and sounds in fireworks come from changes in n
what is one example of chemistry in the world around us?

Explanation:

Fireworks involve chemical reactions. Different metal salts (like strontium carbonate for red, barium chloride for green) are used. When heated, these metals emit specific colors (a chemical property - electron transitions in atoms). Also, the explosive components (like mixtures of oxidizers and fuels) undergo chemical reactions to produce the sound and light effects.

Answer:

Fireworks.