which best explains why a firework being ignited is an example of an exothermic reaction and not an…

which best explains why a firework being ignited is an example of an exothermic reaction and not an endothermic reaction?\nthe fireworks produce colors.\nthe fireworks give off heat.\nigniting the fireworks requires energy.\nigniting the fireworks makes an odor.
Answer
Brief Explanations:
Exothermic reactions release energy in the form of heat, light etc. Endothermic reactions absorb energy. Fireworks giving off heat is a sign of energy release, characteristic of exothermic reactions. Producing colors and odor are not defining features of exothermic reactions. Requiring energy to ignite doesn't determine if it's exothermic or endothermic.
Answer:
The fireworks give off heat.