Read the poem by du fu
"behind those red gates
meat and wine are left to spoil
outside lie the bones
of people who starved and froze."
what is the central idea of the poem? what caused the people to starve to death?

It seems like it's from the time of "The Rain of Terror" or whatever it's called. Where the queen and he subjects got to eat freely and were wasteful with their food. While on the "gates" the peasants or people that were just poor in general, were mad at the queen for not letting them get food. The queen was like "Let em eat cake" while the people were starving to death. Sad right?

Explanation:

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)