Question

What are pyrotechnics? How have pyrotechnics and sounds changed the filming?

Answer 1

Pyrotechnics is a firework or explosion display. Both pyrotechnics & sound have changed filming by adding more emphasis on the explosion or fireworks display & causing the scene to be more dramatic. 

Hope that helped. 

Answer 2

pyrotechnics are basically special effects. This helps to make movies and tv shows more realistic.