What is used in fireworks and flares to give off a brilliant red light?

Question

What highly flammable metal, easy to ignite when powdered, producing a brilliant white light, and difficult to extinguish, being able to burn in both nitrogen and carbon dioxide, was used in incendiary weapons for firebombing cities in World War II and as a source of illumination in the early days of photography?

Answer 1

Calcium salts produce orange fireworks.lithium is a metal that is used to impart a red colour to fireworks.lithium carbonate, in particular, is a common colorant. Magnesium burns a very bright white, so it is used to add white sparks or improve the overall brilliance of fireworks