Need some help with history, can you help me? Explain what "total war" is and how World War I is an example of "total war".

What were the main causes and justifications of World War I?

What was the effect and outcome of World War I?

The devahrime system was created in order to : a. promote the expansion of sikhism in the ottoman empire b. illuminate the influence of christianity in the ottoman empire c. create trade relationships between the ottoman and mughal empires d. provide the ottoman empire with trained professional soldiers