Which of these inventors most directly contributed to changing the way people functioned during the evening?

Thomas Alva Edison; the incandescent light bulb

Explanation:

A major cause of WWI is Imperialism. If the British gobbles up the world's resources, Germany will be left with the scraps and become a second-class nation. ... Great Britain had more land, which equaled more power and resources than Germany. Imperialism was the driving force leading to war. The expansion of European nations as empires (also known as imperialism) can be seen as a key cause of World War I, because as countries like Britain and France expanded their empires, it resulted in increased tensions among European countries.

Explanation: