Why does black powder not explode unless it is ignited in a confined area?

the europeans in the caribbean colonies had to turn to africans to replace the native peoples as slave it would be letter a

all fossil fuels are nonrenewable, so think coal, gasoline, things that we will eventually run out of. all fossil fuels are nonrenewable resources, but not all nonrenewable recourses are fossil fuels. these resources are not being renewed as fast as we are using them. i hope this considering there weren't any answer choices.