Answer:
True
Step-by-step explanation:
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
Trick to learn causes of world war 1 :
The M-A-I-N acronym is often used to analyse the war – militarism, alliances, imperialism and nationalism.