The New York stock market crashed causing 1/3 of the worlds trade to stop
A relationship in which both organisms benefit would be called mutualism. These organisms are often from different species or kingdoms, yet benefit each other anyway. An example of this is a small fish cleaning inside the mouth of a bigger fish, and the big fish in return will not attack or go after the smaller fish. Both organisms benefit in a way and everyone is happy.
The Swastika is the icon that Nazi Germany used on their flag
hope this helps
here is an attachment of how it looked like on the Nazi flag
The four social structures of Haiti were White Elites, Noirs, Affranchis, and Petits Blancs.