→ Plot, characters, and environment help develop a story because --
° What's a story without characters? Every story needs a character, or it will practically have no FUN in it! With no characters, nobody talks and its a bleak pale place you're reading or writing about
° Plot helps develop a story because it's a main event of a story! Nothing interesting would happen, if you didn't have PLOT! Whether it's a good main event or bad, a story won't be a story!
° Last but not least, environment helps develop a story BECAUSE that's basically a scene for the people to be in a story, whether its inside a house or outside in the middle of nowhere :D
↑ ↑ ↑ Hope this helps!