It hard to answer this question without more information,but off the top of my head I would say capitalism?
True!The both talk about the overall moral of the story.
For an example
THEME Central
Jealousy. Mya always wanted the same
thing Layla had.
Hard work pays
Off. Tyianna worked for hours to
earn money.
Bravery||||Even though Tim was afriad Of heights he still climbed up the mountain.
So basically a theme is telling you something all in one word and a central idea is giving you details.
Hopes this helps.
Answer: Wednesday marks the arrival of the fall equinox, bringing the first day of the season to the Northern Hemisphere. Starting Sept. 22, the days will become shorter than the nights until the winter solstice in December, when the days become longer again.