¿Cuáles fueron las causas del colonialismo e imperialismo en Africa y Asia?

En gran medida el colonialismo surge de necesidades económicas de un estado, asociadas a: Materias primas. Productos agrícolas como el té (colonialismo británico en Asia) o el caucho (colonialismo español en América) requieren climas o grandes extensiones de tierra que no podían encontrarse en Europa

the term is einsatzgruppen

roosevelt essentially took the opposite approach as hoover in taking on the great depression. herbert hoover thought that america and its economy could naturally recover from the depression in due course, so he adamantly restrained the federal government from intervening on behalf of the people affected. on the other hand, roosevelt dramatically increased employment by expanding the federal government and establishing agencies that would aid in relieving some of the country's worst problems.