Question

within a firearm, a burning material creates pressure to force the bullet or shot out of the barrel. what is this burning material?
a primer
b firing pin
c wad
d powder

Explanation:

The primer ignites the powder. The firing - pin strikes the primer. The wad is a separator. Gunpowder burns rapidly to create the pressure that forces the bullet or shot out of the barrel.

Answer:

D. powder